Topologic equivalents of coronands, cryptands and their inclusion complexes: Synthesis, structure and properties of {2}-metallacryptands and {2}-metallacryptates

Chemistry - A European Journal

Volumn 3, Issue 12, 1997, Pages 2058-2062

  Saalfrank, Rolf W ^a   Dresel, Andreas ^a   Seitz, Verena ^a   Trummer, Stefan ^a   Hampel, Frank ^a   Teichert, Markus ^b   Stalke, Dietmar ^c   Stadler, Christian ^e   Daub, Jörg ^e   Schünemann, Volker ^d   Trautwein, Alfred X ^d  

^a UNIVERSITY OF ERLANGEN NUREMBERG   (Germany)

^b UNIVERSITY OF GÖTTINGEN   (Germany)

^c UNIVERSITY OF WÜRZBURG   (Germany)

^d UNIVERSITY OF LÜBECK   (Germany)

^e UNIVERSITY OF REGENSBURG   (Germany)

Author keywords

Iron; Metallacryptands; Metallacryptates; Self assembly; Structure elucidation

Indexed keywords

EID: 0031460767     PISSN: 09476539     EISSN: None     Source Type: Journal    
DOI: 10.1002/chem.19970031222     Document Type: Article

References (69)

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2. D. J. Cram, J. J. Cram, Container Molecules and Their Guests, in Monographs in Supramolecular Chemistry, Royal Society of Chemistry, Cambridge 1994; G. W. Gokel, Crown Ethers and Cryptands in Monographs in Supramolecular Chemistry (Ed.: J. Fraser Stoddart), Royal Society of Chemistry, Cambridge 1991; F. Vögtle, Supramolecular Chemistry; An Introduction, Wiley, New York, 1993; Frontiers in Supramolecular Organic Chemistry and Photochemistry (Eds.: H.-J. Schneider, H. Dürr), VCH, Weinheim, 1991; J.-M. Lehn, Supramolecular Chemistry, VCH, Weinheim, 1995; Comprehensive Supramolecular Chemistry (Eds.: J. L. Atwood, J. E. D. Davies, D. D. Macnicol, F. Vögtle, J.-M. Lehn), especially Vol. 1 (Ed.: G. W. Gokel); Molecular Recognition; Receptors for Cationic Guests, Vol. 9 (Eds.: J.-P. Sauvage, M. W. Hosseini); Templating, Self-Assembly and Self-Organization, 1st ed., Pergamon, Oxford, 1996.
3. D. J. Cram, J. J. Cram, Container Molecules and Their Guests, in Monographs in Supramolecular Chemistry, Royal Society of Chemistry, Cambridge 1994; G. W. Gokel, Crown Ethers and Cryptands in Monographs in Supramolecular Chemistry (Ed.: J. Fraser Stoddart), Royal Society of Chemistry, Cambridge 1991; F. Vögtle, Supramolecular Chemistry; An Introduction, Wiley, New York, 1993; Frontiers in Supramolecular Organic Chemistry and Photochemistry (Eds.: H.-J. Schneider, H. Dürr), VCH, Weinheim, 1991; J.-M. Lehn, Supramolecular Chemistry, VCH, Weinheim, 1995; Comprehensive Supramolecular Chemistry (Eds.: J. L. Atwood, J. E. D. Davies, D. D. Macnicol, F. Vögtle, J.-M. Lehn), especially Vol. 1 (Ed.: G. W. Gokel); Molecular Recognition; Receptors for Cationic Guests, Vol. 9 (Eds.: J.-P. Sauvage, M. W. Hosseini); Templating, Self-Assembly and Self-Organization, 1st ed., Pergamon, Oxford, 1996.
4. D. J. Cram, J. J. Cram, Container Molecules and Their Guests, in Monographs in Supramolecular Chemistry, Royal Society of Chemistry, Cambridge 1994; G. W. Gokel, Crown Ethers and Cryptands in Monographs in Supramolecular Chemistry (Ed.: J. Fraser Stoddart), Royal Society of Chemistry, Cambridge 1991; F. Vögtle, Supramolecular Chemistry; An Introduction, Wiley, New York, 1993; Frontiers in Supramolecular Organic Chemistry and Photochemistry (Eds.: H.-J. Schneider, H. Dürr), VCH, Weinheim, 1991; J.-M. Lehn, Supramolecular Chemistry, VCH, Weinheim, 1995; Comprehensive Supramolecular Chemistry (Eds.: J. L. Atwood, J. E. D. Davies, D. D. Macnicol, F. Vögtle, J.-M. Lehn), especially Vol. 1 (Ed.: G. W. Gokel); Molecular Recognition; Receptors for Cationic Guests, Vol. 9 (Eds.: J.-P. Sauvage, M. W. Hosseini); Templating, Self-Assembly and Self-Organization, 1st ed., Pergamon, Oxford, 1996.
5. D. J. Cram, J. J. Cram, Container Molecules and Their Guests, in Monographs in Supramolecular Chemistry, Royal Society of Chemistry, Cambridge 1994; G. W. Gokel, Crown Ethers and Cryptands in Monographs in Supramolecular Chemistry (Ed.: J. Fraser Stoddart), Royal Society of Chemistry, Cambridge 1991; F. Vögtle, Supramolecular Chemistry; An Introduction, Wiley, New York, 1993; Frontiers in Supramolecular Organic Chemistry and Photochemistry (Eds.: H.-J. Schneider, H. Dürr), VCH, Weinheim, 1991; J.-M. Lehn, Supramolecular Chemistry, VCH, Weinheim, 1995; Comprehensive Supramolecular Chemistry (Eds.: J. L. Atwood, J. E. D. Davies, D. D. Macnicol, F. Vögtle, J.-M. Lehn), especially Vol. 1 (Ed.: G. W. Gokel); Molecular Recognition; Receptors for Cationic Guests, Vol. 9 (Eds.: J.-P. Sauvage, M. W. Hosseini); Templating, Self-Assembly and Self-Organization, 1st ed., Pergamon, Oxford, 1996.
6. D. J. Cram, J. J. Cram, Container Molecules and Their Guests, in Monographs in Supramolecular Chemistry, Royal Society of Chemistry, Cambridge 1994; G. W. Gokel, Crown Ethers and Cryptands in Monographs in Supramolecular Chemistry (Ed.: J. Fraser Stoddart), Royal Society of Chemistry, Cambridge 1991; F. Vögtle, Supramolecular Chemistry; An Introduction, Wiley, New York, 1993; Frontiers in Supramolecular Organic Chemistry and Photochemistry (Eds.: H.-J. Schneider, H. Dürr), VCH, Weinheim, 1991; J.-M. Lehn, Supramolecular Chemistry, VCH, Weinheim, 1995; Comprehensive Supramolecular Chemistry (Eds.: J. L. Atwood, J. E. D. Davies, D. D. Macnicol, F. Vögtle, J.-M. Lehn), especially Vol. 1 (Ed.: G. W. Gokel); Molecular Recognition; Receptors for Cationic Guests, Vol. 9 (Eds.: J.-P. Sauvage, M. W. Hosseini); Templating, Self-Assembly and Self-Organization, 1st ed., Pergamon, Oxford, 1996.
7. D. J. Cram, J. J. Cram, Container Molecules and Their Guests, in Monographs in Supramolecular Chemistry, Royal Society of Chemistry, Cambridge 1994; G. W. Gokel, Crown Ethers and Cryptands in Monographs in Supramolecular Chemistry (Ed.: J. Fraser Stoddart), Royal Society of Chemistry, Cambridge 1991; F. Vögtle, Supramolecular Chemistry; An Introduction, Wiley, New York, 1993; Frontiers in Supramolecular Organic Chemistry and Photochemistry (Eds.: H.-J. Schneider, H. Dürr), VCH, Weinheim, 1991; J.-M. Lehn, Supramolecular Chemistry, VCH, Weinheim, 1995; Comprehensive Supramolecular Chemistry (Eds.: J. L. Atwood, J. E. D. Davies, D. D. Macnicol, F. Vögtle, J.-M. Lehn), especially Vol. 1 (Ed.: G. W. Gokel); Molecular Recognition; Receptors for Cationic Guests, Vol. 9 (Eds.: J.-P. Sauvage, M. W. Hosseini); Templating, Self-Assembly and Self-Organization, 1st ed., Pergamon, Oxford, 1996.
8. D. J. Cram, J. J. Cram, Container Molecules and Their Guests, in Monographs in Supramolecular Chemistry, Royal Society of Chemistry, Cambridge 1994; G. W. Gokel, Crown Ethers and Cryptands in Monographs in Supramolecular Chemistry (Ed.: J. Fraser Stoddart), Royal Society of Chemistry, Cambridge 1991; F. Vögtle, Supramolecular Chemistry; An Introduction, Wiley, New York, 1993; Frontiers in Supramolecular Organic Chemistry and Photochemistry (Eds.: H.-J. Schneider, H. Dürr), VCH, Weinheim, 1991; J.-M. Lehn, Supramolecular Chemistry, VCH, Weinheim, 1995; Comprehensive Supramolecular Chemistry (Eds.: J. L. Atwood, J. E. D. Davies, D. D. Macnicol, F. Vögtle, J.-M. Lehn), especially Vol. 1 (Ed.: G. W. Gokel); Molecular Recognition; Receptors for Cationic Guests, Vol. 9 (Eds.: J.-P. Sauvage, M. W. Hosseini); Templating, Self-Assembly and Self-Organization, 1st ed., Pergamon, Oxford, 1996.
9. J.-M. Lehn, Pure Appl. Chem. 1978, 50, 871-892; J.-M. Lehn, ibid. 1980, 52, 2442-2459; C. Seel, F. Vögtle, Angew. Chem. 1992, 104, 542-563; Angew. Chem. Int. Ed. Engl. 1992, 31, 528-549.
10. J.-M. Lehn, Pure Appl. Chem. 1978, 50, 871-892; J.-M. Lehn, ibid. 1980, 52, 2442-2459; C. Seel, F. Vögtle, Angew. Chem. 1992, 104, 542-563; Angew. Chem. Int. Ed. Engl. 1992, 31, 528-549.
11. J.-M. Lehn, Pure Appl. Chem. 1978, 50, 871-892; J.-M. Lehn, ibid. 1980, 52, 2442-2459; C. Seel, F. Vögtle, Angew. Chem. 1992, 104, 542-563; Angew. Chem. Int. Ed. Engl. 1992, 31, 528-549.
12. J.-M. Lehn, Pure Appl. Chem. 1978, 50, 871-892; J.-M. Lehn, ibid. 1980, 52, 2442-2459; C. Seel, F. Vögtle, Angew. Chem. 1992, 104, 542-563; Angew. Chem. Int. Ed. Engl. 1992, 31, 528-549.
13. C. Moore, B. C. Pressman, Biochem. Biophys. Res. Commun. 1964, 15, 562; C. J. Pedersen, J. Am. Chem. Soc. 1967, 89, 7017-7036; B. Dietrich, J.-M. Lehn, J.-P. Sauvage, Tetrahedron Lett. 1969, 2885-2888; ibid. 1969 2889-2892.
14. C. Moore, B. C. Pressman, Biochem. Biophys. Res. Commun. 1964, 15, 562; C. J. Pedersen, J. Am. Chem. Soc. 1967, 89, 7017-7036; B. Dietrich, J.-M. Lehn, J.-P. Sauvage, Tetrahedron Lett. 1969, 2885-2888; ibid. 1969 2889-2892.
15. C. Moore, B. C. Pressman, Biochem. Biophys. Res. Commun. 1964, 15, 562; C. J. Pedersen, J. Am. Chem. Soc. 1967, 89, 7017-7036; B. Dietrich, J.-M. Lehn, J.-P. Sauvage, Tetrahedron Lett. 1969, 2885-2888; ibid. 1969 2889-2892.
16. C. Moore, B. C. Pressman, Biochem. Biophys. Res. Commun. 1964, 15, 562; C. J. Pedersen, J. Am. Chem. Soc. 1967, 89, 7017-7036; B. Dietrich, J.-M. Lehn, J.-P. Sauvage, Tetrahedron Lett. 1969, 2885-2888; ibid. 1969 2889-2892.
17. R. W. Saalfrank, A. Stark, K. Peters, H.-G. v. Schering, Angew. Chem. 1988, 100, 878-880; Angew. Chem. Int. Ed. Engl. 1988, 27, 851-853; R. W. Saalfrank, R. Burak, A. Breit, D. Stalke, R. Herbst-Irmer, J. Daub, M. Porsch, E. Bill, M. Müther, A. X. Trautwein, ibid. 1994, 106, 1697-1699 and 1994, 33, 1621-1623; R. W. Saalfrank, R. Burak, S. Reihs, N. Löw, F. Hampel, H.-D. Stachel, J. Lentmeir, K. Peters, E. M. Peters, H.-G. v. Schnering, ibid. 1995, 107, 1085-1087 and 1995, 34, 993-995.
18. R. W. Saalfrank, A. Stark, K. Peters, H.-G. v. Schering, Angew. Chem. 1988, 100, 878-880; Angew. Chem. Int. Ed. Engl. 1988, 27, 851-853; R. W. Saalfrank, R. Burak, A. Breit, D. Stalke, R. Herbst-Irmer, J. Daub, M. Porsch, E. Bill, M. Müther, A. X. Trautwein, ibid. 1994, 106, 1697-1699 and 1994, 33, 1621-1623; R. W. Saalfrank, R. Burak, S. Reihs, N. Löw, F. Hampel, H.-D. Stachel, J. Lentmeir, K. Peters, E. M. Peters, H.-G. v. Schnering, ibid. 1995, 107, 1085-1087 and 1995, 34, 993-995.
19. R. W. Saalfrank, A. Stark, K. Peters, H.-G. v. Schering, Angew. Chem. 1988, 100, 878-880; Angew. Chem. Int. Ed. Engl. 1988, 27, 851-853; R. W. Saalfrank, R. Burak, A. Breit, D. Stalke, R. Herbst-Irmer, J. Daub, M. Porsch, E. Bill, M. Müther, A. X. Trautwein, ibid. 1994, 106, 1697-1699 and 1994, 33, 1621-1623; R. W. Saalfrank, R. Burak, S. Reihs, N. Löw, F. Hampel, H.-D. Stachel, J. Lentmeir, K. Peters, E. M. Peters, H.-G. v. Schnering, ibid. 1995, 107, 1085-1087 and 1995, 34, 993-995.
20. R. W. Saalfrank, A. Stark, K. Peters, H.-G. v. Schering, Angew. Chem. 1988, 100, 878-880; Angew. Chem. Int. Ed. Engl. 1988, 27, 851-853; R. W. Saalfrank, R. Burak, A. Breit, D. Stalke, R. Herbst-Irmer, J. Daub, M. Porsch, E. Bill, M. Müther, A. X. Trautwein, ibid. 1994, 106, 1697-1699 and 1994, 33, 1621-1623; R. W. Saalfrank, R. Burak, S. Reihs, N. Löw, F. Hampel, H.-D. Stachel, J. Lentmeir, K. Peters, E. M. Peters, H.-G. v. Schnering, ibid. 1995, 107, 1085-1087 and 1995, 34, 993-995.
21. R. W. Saalfrank, A. Stark, K. Peters, H.-G. v. Schering, Angew. Chem. 1988, 100, 878-880; Angew. Chem. Int. Ed. Engl. 1988, 27, 851-853; R. W. Saalfrank, R. Burak, A. Breit, D. Stalke, R. Herbst-Irmer, J. Daub, M. Porsch, E. Bill, M. Müther, A. X. Trautwein, ibid. 1994, 106, 1697-1699 and 1994, 33, 1621-1623; R. W. Saalfrank, R. Burak, S. Reihs, N. Löw, F. Hampel, H.-D. Stachel, J. Lentmeir, K. Peters, E. M. Peters, H.-G. v. Schnering, ibid. 1995, 107, 1085-1087 and 1995, 34, 993-995.
22. R. W. Saalfrank, A. Stark, K. Peters, H.-G. v. Schering, Angew. Chem. 1988, 100, 878-880; Angew. Chem. Int. Ed. Engl. 1988, 27, 851-853; R. W. Saalfrank, R. Burak, A. Breit, D. Stalke, R. Herbst-Irmer, J. Daub, M. Porsch, E. Bill, M. Müther, A. X. Trautwein, ibid. 1994, 106, 1697-1699 and 1994, 33, 1621-1623; R. W. Saalfrank, R. Burak, S. Reihs, N. Löw, F. Hampel, H.-D. Stachel, J. Lentmeir, K. Peters, E. M. Peters, H.-G. v. Schnering, ibid. 1995, 107, 1085-1087 and 1995, 34, 993-995.
23. T. Beissel, R. E. Powers, K. N. Raymond, Angew. Chem. 1996, 108, 1166-1168; Angew. Chem. Int. Ed. Engl. 1996, 35, 1084-1086.
24. T. Beissel, R. E. Powers, K. N. Raymond, Angew. Chem. 1996, 108, 1166-1168; Angew. Chem. Int. Ed. Engl. 1996, 35, 1084-1086.
25. D. Philp, J. F. Stoddart, Angew. Chem. 1996, 108, 1243-1286; Angew. Chem. Int. Ed. Engl. 1996, 35, 1154-1196; J.-M. Lehn, ibid. 1988, 100, 91-116 and 1988, 27, 89-112; J.-M. Lehn, ibid. 1990, 102, 1347-1362 and 1990, 29, 1304-1319.
26. D. Philp, J. F. Stoddart, Angew. Chem. 1996, 108, 1243-1286; Angew. Chem. Int. Ed. Engl. 1996, 35, 1154-1196; J.-M. Lehn, ibid. 1988, 100, 91-116 and 1988, 27, 89-112; J.-M. Lehn, ibid. 1990, 102, 1347-1362 and 1990, 29, 1304-1319.
27. D. Philp, J. F. Stoddart, Angew. Chem. 1996, 108, 1243-1286; Angew. Chem. Int. Ed. Engl. 1996, 35, 1154-1196; J.-M. Lehn, ibid. 1988, 100, 91-116 and 1988, 27, 89-112; J.-M. Lehn, ibid. 1990, 102, 1347-1362 and 1990, 29, 1304-1319.
28. D. Philp, J. F. Stoddart, Angew. Chem. 1996, 108, 1243-1286; Angew. Chem. Int. Ed. Engl. 1996, 35, 1154-1196; J.-M. Lehn, ibid. 1988, 100, 91-116 and 1988, 27, 89-112; J.-M. Lehn, ibid. 1990, 102, 1347-1362 and 1990, 29, 1304-1319.
29. D. Philp, J. F. Stoddart, Angew. Chem. 1996, 108, 1243-1286; Angew. Chem. Int. Ed. Engl. 1996, 35, 1154-1196; J.-M. Lehn, ibid. 1988, 100, 91-116 and 1988, 27, 89-112; J.-M. Lehn, ibid. 1990, 102, 1347-1362 and 1990, 29, 1304-1319.
30. D. Philp, J. F. Stoddart, Angew. Chem. 1996, 108, 1243-1286; Angew. Chem. Int. Ed. Engl. 1996, 35, 1154-1196; J.-M. Lehn, ibid. 1988, 100, 91-116 and 1988, 27, 89-112; J.-M. Lehn, ibid. 1990, 102, 1347-1362 and 1990, 29, 1304-1319.
31. R. W. Saalfrank, N. Löw, F. Hampel, H.-D Stachel, Angew. Chem. 1996, 108, 2353-2354; Angew. Chem. Int. Ed. Engl. 1996, 35, 2209-2210.
32. R. W. Saalfrank, N. Löw, F. Hampel, H.-D Stachel, Angew. Chem. 1996, 108, 2353-2354; Angew. Chem. Int. Ed. Engl. 1996, 35, 2209-2210.
33. For similar structures see: E. J. Corey, C. L. Cywin, M. C. Noe, Tetrahedron Lett. 1994, 35, 69-72; C. Krebs, M. Winter, T. Weymüller, E. Bill, K. Wieghardt, P. Chaudhuri, J. Chem. Soc. Shem. Commun. 1995, 1913-1915; D. Burdhinski, F. Birkelbach, M. Gerdan, A. X. Trautwein, K. Wieghardt, P. Chaudhuri, ibid. 1995, 963-964; P. Chaudhuri, M. Winter, P. Fleischhauer, W. Haase, U. Flörke, H.-J. Haupt, ibid. 1990, 1728-1730; P. Chaudhuri, M. Winter, B. P. C. Della Vedova, P. Fleischbauer, W. Haase, U. Flörke, H.-J. Haupt, Inorg. Chem. 1991, 30, 4777-4783; P. Chaudhuri, M. Winter, F. Birkelbach, P. Fleischbauer, W. Haase, U. Flörke, H.-J. Haupt, ibid. 1991, 30, 4291-4293; M. Albrecht, S. Kotila, Angew. Chem. 1996, 108, 1299-1300: Angew. Chem. Int. Ed. Engl. 1996, 35, 1208-1210.
34. For similar structures see: E. J. Corey, C. L. Cywin, M. C. Noe, Tetrahedron Lett. 1994, 35, 69-72; C. Krebs, M. Winter, T. Weymüller, E. Bill, K. Wieghardt, P. Chaudhuri, J. Chem. Soc. Shem. Commun. 1995, 1913-1915; D. Burdhinski, F. Birkelbach, M. Gerdan, A. X. Trautwein, K. Wieghardt, P. Chaudhuri, ibid. 1995, 963-964; P. Chaudhuri, M. Winter, P. Fleischhauer, W. Haase, U. Flörke, H.-J. Haupt, ibid. 1990, 1728-1730; P. Chaudhuri, M. Winter, B. P. C. Della Vedova, P. Fleischbauer, W. Haase, U. Flörke, H.-J. Haupt, Inorg. Chem. 1991, 30, 4777-4783; P. Chaudhuri, M. Winter, F. Birkelbach, P. Fleischbauer, W. Haase, U. Flörke, H.-J. Haupt, ibid. 1991, 30, 4291-4293; M. Albrecht, S. Kotila, Angew. Chem. 1996, 108, 1299-1300: Angew. Chem. Int. Ed. Engl. 1996, 35, 1208-1210.
35. For similar structures see: E. J. Corey, C. L. Cywin, M. C. Noe, Tetrahedron Lett. 1994, 35, 69-72; C. Krebs, M. Winter, T. Weymüller, E. Bill, K. Wieghardt, P. Chaudhuri, J. Chem. Soc. Shem. Commun. 1995, 1913-1915; D. Burdhinski, F. Birkelbach, M. Gerdan, A. X. Trautwein, K. Wieghardt, P. Chaudhuri, ibid. 1995, 963-964; P. Chaudhuri, M. Winter, P. Fleischhauer, W. Haase, U. Flörke, H.-J. Haupt, ibid. 1990, 1728-1730; P. Chaudhuri, M. Winter, B. P. C. Della Vedova, P. Fleischbauer, W. Haase, U. Flörke, H.-J. Haupt, Inorg. Chem. 1991, 30, 4777-4783; P. Chaudhuri, M. Winter, F. Birkelbach, P. Fleischbauer, W. Haase, U. Flörke, H.-J. Haupt, ibid. 1991, 30, 4291-4293; M. Albrecht, S. Kotila, Angew. Chem. 1996, 108, 1299-1300: Angew. Chem. Int. Ed. Engl. 1996, 35, 1208-1210.
36. For similar structures see: E. J. Corey, C. L. Cywin, M. C. Noe, Tetrahedron Lett. 1994, 35, 69-72; C. Krebs, M. Winter, T. Weymüller, E. Bill, K. Wieghardt, P. Chaudhuri, J. Chem. Soc. Shem. Commun. 1995, 1913-1915; D. Burdhinski, F. Birkelbach, M. Gerdan, A. X. Trautwein, K. Wieghardt, P. Chaudhuri, ibid. 1995, 963-964; P. Chaudhuri, M. Winter, P. Fleischhauer, W. Haase, U. Flörke, H.-J. Haupt, ibid. 1990, 1728-1730; P. Chaudhuri, M. Winter, B. P. C. Della Vedova, P. Fleischbauer, W. Haase, U. Flörke, H.-J. Haupt, Inorg. Chem. 1991, 30, 4777-4783; P. Chaudhuri, M. Winter, F. Birkelbach, P. Fleischbauer, W. Haase, U. Flörke, H.-J. Haupt, ibid. 1991, 30, 4291-4293; M. Albrecht, S. Kotila, Angew. Chem. 1996, 108, 1299-1300: Angew. Chem. Int. Ed. Engl. 1996, 35, 1208-1210.
37. For similar structures see: E. J. Corey, C. L. Cywin, M. C. Noe, Tetrahedron Lett. 1994, 35, 69-72; C. Krebs, M. Winter, T. Weymüller, E. Bill, K. Wieghardt, P. Chaudhuri, J. Chem. Soc. Shem. Commun. 1995, 1913-1915; D. Burdhinski, F. Birkelbach, M. Gerdan, A. X. Trautwein, K. Wieghardt, P. Chaudhuri, ibid. 1995, 963-964; P. Chaudhuri, M. Winter, P. Fleischhauer, W. Haase, U. Flörke, H.-J. Haupt, ibid. 1990, 1728-1730; P. Chaudhuri, M. Winter, B. P. C. Della Vedova, P. Fleischbauer, W. Haase, U. Flörke, H.-J. Haupt, Inorg. Chem. 1991, 30, 4777-4783; P. Chaudhuri, M. Winter, F. Birkelbach, P. Fleischbauer, W. Haase, U. Flörke, H.-J. Haupt, ibid. 1991, 30, 4291-4293; M. Albrecht, S. Kotila, Angew. Chem. 1996, 108, 1299-1300: Angew. Chem. Int. Ed. Engl. 1996, 35, 1208-1210.
38. For similar structures see: E. J. Corey, C. L. Cywin, M. C. Noe, Tetrahedron Lett. 1994, 35, 69-72; C. Krebs, M. Winter, T. Weymüller, E. Bill, K. Wieghardt, P. Chaudhuri, J. Chem. Soc. Shem. Commun. 1995, 1913-1915; D. Burdhinski, F. Birkelbach, M. Gerdan, A. X. Trautwein, K. Wieghardt, P. Chaudhuri, ibid. 1995, 963-964; P. Chaudhuri, M. Winter, P. Fleischhauer, W. Haase, U. Flörke, H.-J. Haupt, ibid. 1990, 1728-1730; P. Chaudhuri, M. Winter, B. P. C. Della Vedova, P. Fleischbauer, W. Haase, U. Flörke, H.-J. Haupt, Inorg. Chem. 1991, 30, 4777-4783; P. Chaudhuri, M. Winter, F. Birkelbach, P. Fleischbauer, W. Haase, U. Flörke, H.-J. Haupt, ibid. 1991, 30, 4291-4293; M. Albrecht, S. Kotila, Angew. Chem. 1996, 108, 1299-1300: Angew. Chem. Int. Ed. Engl. 1996, 35, 1208-1210.
39. For similar structures see: E. J. Corey, C. L. Cywin, M. C. Noe, Tetrahedron Lett. 1994, 35, 69-72; C. Krebs, M. Winter, T. Weymüller, E. Bill, K. Wieghardt, P. Chaudhuri, J. Chem. Soc. Shem. Commun. 1995, 1913-1915; D. Burdhinski, F. Birkelbach, M. Gerdan, A. X. Trautwein, K. Wieghardt, P. Chaudhuri, ibid. 1995, 963-964; P. Chaudhuri, M. Winter, P. Fleischhauer, W. Haase, U. Flörke, H.-J. Haupt, ibid. 1990, 1728-1730; P. Chaudhuri, M. Winter, B. P. C. Della Vedova, P. Fleischbauer, W. Haase, U. Flörke, H.-J. Haupt, Inorg. Chem. 1991, 30, 4777-4783; P. Chaudhuri, M. Winter, F. Birkelbach, P. Fleischbauer, W. Haase, U. Flörke, H.-J. Haupt, ibid. 1991, 30, 4291-4293; M. Albrecht, S. Kotila, Angew. Chem. 1996, 108, 1299-1300: Angew. Chem. Int. Ed. Engl. 1996, 35, 1208-1210.
40. For similar structures see: E. J. Corey, C. L. Cywin, M. C. Noe, Tetrahedron Lett. 1994, 35, 69-72; C. Krebs, M. Winter, T. Weymüller, E. Bill, K. Wieghardt, P. Chaudhuri, J. Chem. Soc. Shem. Commun. 1995, 1913-1915; D. Burdhinski, F. Birkelbach, M. Gerdan, A. X. Trautwein, K. Wieghardt, P. Chaudhuri, ibid. 1995, 963-964; P. Chaudhuri, M. Winter, P. Fleischhauer, W. Haase, U. Flörke, H.-J. Haupt, ibid. 1990, 1728-1730; P. Chaudhuri, M. Winter, B. P. C. Della Vedova, P. Fleischbauer, W. Haase, U. Flörke, H.-J. Haupt, Inorg. Chem. 1991, 30, 4777-4783; P. Chaudhuri, M. Winter, F. Birkelbach, P. Fleischbauer, W. Haase, U. Flörke, H.-J. Haupt, ibid. 1991, 30, 4291-4293; M. Albrecht, S. Kotila, Angew. Chem. 1996, 108, 1299-1300: Angew. Chem. Int. Ed. Engl. 1996, 35, 1208-1210.
41. Synthesis according to ref. [10]: cyanoacetic diisopropyl ester, triethylamine, dry magnesium chloride and isophthaloylchloride in acetonitrile at -15°C (16 h) and work-up in 1 N HCl.
42. M. W Rathke, M. A. Nowak, Synth. Commun. 1985, 15, 1039-1049; M. W. Rathke, A. Nowak, J. Org. Chem. 1985, 50, 2624-2626; M. W. Rathke, P. J. Cowan, ibid. 1985, 50, 2622-2624.
43. M. W Rathke, M. A. Nowak, Synth. Commun. 1985, 15, 1039-1049; M. W. Rathke, A. Nowak, J. Org. Chem. 1985, 50, 2624-2626; M. W. Rathke, P. J. Cowan, ibid. 1985, 50, 2622-2624.
44. M. W Rathke, M. A. Nowak, Synth. Commun. 1985, 15, 1039-1049; M. W. Rathke, A. Nowak, J. Org. Chem. 1985, 50, 2624-2626; M. W. Rathke, P. J. Cowan, ibid. 1985, 50, 2622-2624.
45. [14] All non-hydrogen atoms were refined anisotropically and the riding model was used for the hydrogen atoms. All disordered components were refined anisotropically with the assistance of distance and ADP restraints. Crystallographic data (excluding structure factors) for the structures reported in this paper have been deposited with the Cambridge Crystallographic Data Centre as supplementary publication no. CCDC-100076. Copies of the data can be obtained free of charge on application to The Director, CCDC, 12 Union Road, Cambridge CB21EZ, UK (Fax: Int. code + (1223) 336-033; e-mail: deposit@chemcrys.cam.ac.uk). For red-green stereoviews of 8 and 10, see http://www.organik.uni-erlangen.de/saalfrank.index.html
46. T. Kottke, D. Stalke, J. Appl. Crystallogr. 1993, 26, 615
47. G. M. Sheldrick, SHELXS-96, Acta Crystallogr. 1990, A46, 467
48. G. M. Sheldrick, SHELXL-96, Program for Crystal Structure Refinement, Universität Göttingen 1996.
49. E. C. Constable, Tetrahedron 1992, 48, 10013-10059; E. C. Constable, Angew. Chem. 1991, 103, 1482-1483; Angew. Chem. Int. Ed. Engl. 1991, 30, 1450-1451; E. C. Constable, T. Kulke, M. Neuburger, M. Zehnder, Chem. Commun. 1997, 489-490; E. J. Enemark, T. D. P. Stack, ibid. 1995, 107, 1082-1084 and 1995, 34, 996-998; R. Krämer, J.-M. Lehn, A. DeCian, J. Fischer, ibid. 1993, 105, 764-768 and 1993, 32, 703-706; R. C. Scarrow, D. L. White, K. N. Raymond, J. Am. Chem. Soc. 1985, 107, 6540-6546; C. J. Carrano, K. N. Raymond, ibid. 1978, 100, 5371-5374; B. Kersting, M. Meyer, R. E. Powers, K. N. Raymond, ibid. 1996, 118, 7221-7222; A. Williams, Chem. Eur. J. 1997, 3, 15-19: L. J. Charbonniere, A. F. Williams, U. Frey, A. E. Merbach, P. Kamalaprija, O. Schaad, J. Am. Chem. Soc. 1997, 119, 2488-2496: C. Piguet, G. Bernardinelli, A. F. Williams, B. Bocquet, Angew. Chem. 1995, 107, 618-621; Angew. Chem. Int. Ed. Engl. 1995, 34, 582-584.
50. E. C. Constable, Tetrahedron 1992, 48, 10013-10059; E. C. Constable, Angew. Chem. 1991, 103, 1482-1483; Angew. Chem. Int. Ed. Engl. 1991, 30, 1450-1451; E. C. Constable, T. Kulke, M. Neuburger, M. Zehnder, Chem. Commun. 1997, 489-490; E. J. Enemark, T. D. P. Stack, ibid. 1995, 107, 1082-1084 and 1995, 34, 996-998; R. Krämer, J.-M. Lehn, A. DeCian, J. Fischer, ibid. 1993, 105, 764-768 and 1993, 32, 703-706; R. C. Scarrow, D. L. White, K. N. Raymond, J. Am. Chem. Soc. 1985, 107, 6540-6546; C. J. Carrano, K. N. Raymond, ibid. 1978, 100, 5371-5374; B. Kersting, M. Meyer, R. E. Powers, K. N. Raymond, ibid. 1996, 118, 7221-7222; A. Williams, Chem. Eur. J. 1997, 3, 15-19: L. J. Charbonniere, A. F. Williams, U. Frey, A. E. Merbach, P. Kamalaprija, O. Schaad, J. Am. Chem. Soc. 1997, 119, 2488-2496: C. Piguet, G. Bernardinelli, A. F. Williams, B. Bocquet, Angew. Chem. 1995, 107, 618-621; Angew. Chem. Int. Ed. Engl. 1995, 34, 582-584.
51. E. C. Constable, Tetrahedron 1992, 48, 10013-10059; E. C. Constable, Angew. Chem. 1991, 103, 1482-1483; Angew. Chem. Int. Ed. Engl. 1991, 30, 1450-1451; E. C. Constable, T. Kulke, M. Neuburger, M. Zehnder, Chem. Commun. 1997, 489-490; E. J. Enemark, T. D. P. Stack, ibid. 1995, 107, 1082-1084 and 1995, 34, 996-998; R. Krämer, J.-M. Lehn, A. DeCian, J. Fischer, ibid. 1993, 105, 764-768 and 1993, 32, 703-706; R. C. Scarrow, D. L. White, K. N. Raymond, J. Am. Chem. Soc. 1985, 107, 6540-6546; C. J. Carrano, K. N. Raymond, ibid. 1978, 100, 5371-5374; B. Kersting, M. Meyer, R. E. Powers, K. N. Raymond, ibid. 1996, 118, 7221-7222; A. Williams, Chem. Eur. J. 1997, 3, 15-19: L. J. Charbonniere, A. F. Williams, U. Frey, A. E. Merbach, P. Kamalaprija, O. Schaad, J. Am. Chem. Soc. 1997, 119, 2488-2496: C. Piguet, G. Bernardinelli, A. F. Williams, B. Bocquet, Angew. Chem. 1995, 107, 618-621; Angew. Chem. Int. Ed. Engl. 1995, 34, 582-584.
52. E. C. Constable, Tetrahedron 1992, 48, 10013-10059; E. C. Constable, Angew. Chem. 1991, 103, 1482-1483; Angew. Chem. Int. Ed. Engl. 1991, 30, 1450-1451; E. C. Constable, T. Kulke, M. Neuburger, M. Zehnder, Chem. Commun. 1997, 489-490; E. J. Enemark, T. D. P. Stack, ibid. 1995, 107, 1082-1084 and 1995, 34, 996-998; R. Krämer, J.-M. Lehn, A. DeCian, J. Fischer, ibid. 1993, 105, 764-768 and 1993, 32, 703-706; R. C. Scarrow, D. L. White, K. N. Raymond, J. Am. Chem. Soc. 1985, 107, 6540-6546; C. J. Carrano, K. N. Raymond, ibid. 1978, 100, 5371-5374; B. Kersting, M. Meyer, R. E. Powers, K. N. Raymond, ibid. 1996, 118, 7221-7222; A. Williams, Chem. Eur. J. 1997, 3, 15-19: L. J. Charbonniere, A. F. Williams, U. Frey, A. E. Merbach, P. Kamalaprija, O. Schaad, J. Am. Chem. Soc. 1997, 119, 2488-2496: C. Piguet, G. Bernardinelli, A. F. Williams, B. Bocquet, Angew. Chem. 1995, 107, 618-621; Angew. Chem. Int. Ed. Engl. 1995, 34, 582-584.
53. E. C. Constable, Tetrahedron 1992, 48, 10013-10059; E. C. Constable, Angew. Chem. 1991, 103, 1482-1483; Angew. Chem. Int. Ed. Engl. 1991, 30, 1450-1451; E. C. Constable, T. Kulke, M. Neuburger, M. Zehnder, Chem. Commun. 1997, 489-490; E. J. Enemark, T. D. P. Stack, ibid. 1995, 107, 1082-1084 and 1995, 34, 996-998; R. Krämer, J.-M. Lehn, A. DeCian, J. Fischer, ibid. 1993, 105, 764-768 and 1993, 32, 703-706; R. C. Scarrow, D. L. White, K. N. Raymond, J. Am. Chem. Soc. 1985, 107, 6540-6546; C. J. Carrano, K. N. Raymond, ibid. 1978, 100, 5371-5374; B. Kersting, M. Meyer, R. E. Powers, K. N. Raymond, ibid. 1996, 118, 7221-7222; A. Williams, Chem. Eur. J. 1997, 3, 15-19: L. J. Charbonniere, A. F. Williams, U. Frey, A. E. Merbach, P. Kamalaprija, O. Schaad, J. Am. Chem. Soc. 1997, 119, 2488-2496: C. Piguet, G. Bernardinelli, A. F. Williams, B. Bocquet, Angew. Chem. 1995, 107, 618-621; Angew. Chem. Int. Ed. Engl. 1995, 34, 582-584.
54. E. C. Constable, Tetrahedron 1992, 48, 10013-10059; E. C. Constable, Angew. Chem. 1991, 103, 1482-1483; Angew. Chem. Int. Ed. Engl. 1991, 30, 1450-1451; E. C. Constable, T. Kulke, M. Neuburger, M. Zehnder, Chem. Commun. 1997, 489-490; E. J. Enemark, T. D. P. Stack, ibid. 1995, 107, 1082-1084 and 1995, 34, 996-998; R. Krämer, J.-M. Lehn, A. DeCian, J. Fischer, ibid. 1993, 105, 764-768 and 1993, 32, 703-706; R. C. Scarrow, D. L. White, K. N. Raymond, J. Am. Chem. Soc. 1985, 107, 6540-6546; C. J. Carrano, K. N. Raymond, ibid. 1978, 100, 5371-5374; B. Kersting, M. Meyer, R. E. Powers, K. N. Raymond, ibid. 1996, 118, 7221-7222; A. Williams, Chem. Eur. J. 1997, 3, 15-19: L. J. Charbonniere, A. F. Williams, U. Frey, A. E. Merbach, P. Kamalaprija, O. Schaad, J. Am. Chem. Soc. 1997, 119, 2488-2496: C. Piguet, G. Bernardinelli, A. F. Williams, B. Bocquet, Angew. Chem. 1995, 107, 618-621; Angew. Chem. Int. Ed. Engl. 1995, 34, 582-584.
55. E. C. Constable, Tetrahedron 1992, 48, 10013-10059; E. C. Constable, Angew. Chem. 1991, 103, 1482-1483; Angew. Chem. Int. Ed. Engl. 1991, 30, 1450-1451; E. C. Constable, T. Kulke, M. Neuburger, M. Zehnder, Chem. Commun. 1997, 489-490; E. J. Enemark, T. D. P. Stack, ibid. 1995, 107, 1082-1084 and 1995, 34, 996-998; R. Krämer, J.-M. Lehn, A. DeCian, J. Fischer, ibid. 1993, 105, 764-768 and 1993, 32, 703-706; R. C. Scarrow, D. L. White, K. N. Raymond, J. Am. Chem. Soc. 1985, 107, 6540-6546; C. J. Carrano, K. N. Raymond, ibid. 1978, 100, 5371-5374; B. Kersting, M. Meyer, R. E. Powers, K. N. Raymond, ibid. 1996, 118, 7221-7222; A. Williams, Chem. Eur. J. 1997, 3, 15-19: L. J. Charbonniere, A. F. Williams, U. Frey, A. E. Merbach, P. Kamalaprija, O. Schaad, J. Am. Chem. Soc. 1997, 119, 2488-2496: C. Piguet, G. Bernardinelli, A. F. Williams, B. Bocquet, Angew. Chem. 1995, 107, 618-621; Angew. Chem. Int. Ed. Engl. 1995, 34, 582-584.
56. E. C. Constable, Tetrahedron 1992, 48, 10013-10059; E. C. Constable, Angew. Chem. 1991, 103, 1482-1483; Angew. Chem. Int. Ed. Engl. 1991, 30, 1450-1451; E. C. Constable, T. Kulke, M. Neuburger, M. Zehnder, Chem. Commun. 1997, 489-490; E. J. Enemark, T. D. P. Stack, ibid. 1995, 107, 1082-1084 and 1995, 34, 996-998; R. Krämer, J.-M. Lehn, A. DeCian, J. Fischer, ibid. 1993, 105, 764-768 and 1993, 32, 703-706; R. C. Scarrow, D. L. White, K. N. Raymond, J. Am. Chem. Soc. 1985, 107, 6540-6546; C. J. Carrano, K. N. Raymond, ibid. 1978, 100, 5371-5374; B. Kersting, M. Meyer, R. E. Powers, K. N. Raymond, ibid. 1996, 118, 7221-7222; A. Williams, Chem. Eur. J. 1997, 3, 15-19: L. J. Charbonniere, A. F. Williams, U. Frey, A. E. Merbach, P. Kamalaprija, O. Schaad, J. Am. Chem. Soc. 1997, 119, 2488-2496: C. Piguet, G. Bernardinelli, A. F. Williams, B. Bocquet, Angew. Chem. 1995, 107, 618-621; Angew. Chem. Int. Ed. Engl. 1995, 34, 582-584.
57. E. C. Constable, Tetrahedron 1992, 48, 10013-10059; E. C. Constable, Angew. Chem. 1991, 103, 1482-1483; Angew. Chem. Int. Ed. Engl. 1991, 30, 1450-1451; E. C. Constable, T. Kulke, M. Neuburger, M. Zehnder, Chem. Commun. 1997, 489-490; E. J. Enemark, T. D. P. Stack, ibid. 1995, 107, 1082-1084 and 1995, 34, 996-998; R. Krämer, J.-M. Lehn, A. DeCian, J. Fischer, ibid. 1993, 105, 764-768 and 1993, 32, 703-706; R. C. Scarrow, D. L. White, K. N. Raymond, J. Am. Chem. Soc. 1985, 107, 6540-6546; C. J. Carrano, K. N. Raymond, ibid. 1978, 100, 5371-5374; B. Kersting, M. Meyer, R. E. Powers, K. N. Raymond, ibid. 1996, 118, 7221-7222; A. Williams, Chem. Eur. J. 1997, 3, 15-19: L. J. Charbonniere, A. F. Williams, U. Frey, A. E. Merbach, P. Kamalaprija, O. Schaad, J. Am. Chem. Soc. 1997, 119, 2488-2496: C. Piguet, G. Bernardinelli, A. F. Williams, B. Bocquet, Angew. Chem. 1995, 107, 618-621; Angew. Chem. Int. Ed. Engl. 1995, 34, 582-584.
58. E. C. Constable, Tetrahedron 1992, 48, 10013-10059; E. C. Constable, Angew. Chem. 1991, 103, 1482-1483; Angew. Chem. Int. Ed. Engl. 1991, 30, 1450-1451; E. C. Constable, T. Kulke, M. Neuburger, M. Zehnder, Chem. Commun. 1997, 489-490; E. J. Enemark, T. D. P. Stack, ibid. 1995, 107, 1082-1084 and 1995, 34, 996-998; R. Krämer, J.-M. Lehn, A. DeCian, J. Fischer, ibid. 1993, 105, 764-768 and 1993, 32, 703-706; R. C. Scarrow, D. L. White, K. N. Raymond, J. Am. Chem. Soc. 1985, 107, 6540-6546; C. J. Carrano, K. N. Raymond, ibid. 1978, 100, 5371-5374; B. Kersting, M. Meyer, R. E. Powers, K. N. Raymond, ibid. 1996, 118, 7221-7222; A. Williams, Chem. Eur. J. 1997, 3, 15-19: L. J. Charbonniere, A. F. Williams, U. Frey, A. E. Merbach, P. Kamalaprija, O. Schaad, J. Am. Chem. Soc. 1997, 119, 2488-2496: C. Piguet, G. Bernardinelli, A. F. Williams, B. Bocquet, Angew. Chem. 1995, 107, 618-621; Angew. Chem. Int. Ed. Engl. 1995, 34, 582-584.
59. E. C. Constable, Tetrahedron 1992, 48, 10013-10059; E. C. Constable, Angew. Chem. 1991, 103, 1482-1483; Angew. Chem. Int. Ed. Engl. 1991, 30, 1450-1451; E. C. Constable, T. Kulke, M. Neuburger, M. Zehnder, Chem. Commun. 1997, 489-490; E. J. Enemark, T. D. P. Stack, ibid. 1995, 107, 1082-1084 and 1995, 34, 996-998; R. Krämer, J.-M. Lehn, A. DeCian, J. Fischer, ibid. 1993, 105, 764-768 and 1993, 32, 703-706; R. C. Scarrow, D. L. White, K. N. Raymond, J. Am. Chem. Soc. 1985, 107, 6540-6546; C. J. Carrano, K. N. Raymond, ibid. 1978, 100, 5371-5374; B. Kersting, M. Meyer, R. E. Powers, K. N. Raymond, ibid. 1996, 118, 7221-7222; A. Williams, Chem. Eur. J. 1997, 3, 15-19: L. J. Charbonniere, A. F. Williams, U. Frey, A. E. Merbach, P. Kamalaprija, O. Schaad, J. Am. Chem. Soc. 1997, 119, 2488-2496: C. Piguet, G. Bernardinelli, A. F. Williams, B. Bocquet, Angew. Chem. 1995, 107, 618-621; Angew. Chem. Int. Ed. Engl. 1995, 34, 582-584.
60. E. C. Constable, Tetrahedron 1992, 48, 10013-10059; E. C. Constable, Angew. Chem. 1991, 103, 1482-1483; Angew. Chem. Int. Ed. Engl. 1991, 30, 1450-1451; E. C. Constable, T. Kulke, M. Neuburger, M. Zehnder, Chem. Commun. 1997, 489-490; E. J. Enemark, T. D. P. Stack, ibid. 1995, 107, 1082-1084 and 1995, 34, 996-998; R. Krämer, J.-M. Lehn, A. DeCian, J. Fischer, ibid. 1993, 105, 764-768 and 1993, 32, 703-706; R. C. Scarrow, D. L. White, K. N. Raymond, J. Am. Chem. Soc. 1985, 107, 6540-6546; C. J. Carrano, K. N. Raymond, ibid. 1978, 100, 5371-5374; B. Kersting, M. Meyer, R. E. Powers, K. N. Raymond, ibid. 1996, 118, 7221-7222; A. Williams, Chem. Eur. J. 1997, 3, 15-19: L. J. Charbonniere, A. F. Williams, U. Frey, A. E. Merbach, P. Kamalaprija, O. Schaad, J. Am. Chem. Soc. 1997, 119, 2488-2496: C. Piguet, G. Bernardinelli, A. F. Williams, B. Bocquet, Angew. Chem. 1995, 107, 618-621; Angew. Chem. Int. Ed. Engl. 1995, 34, 582-584.
61. E. C. Constable, Tetrahedron 1992, 48, 10013-10059; E. C. Constable, Angew. Chem. 1991, 103, 1482-1483; Angew. Chem. Int. Ed. Engl. 1991, 30, 1450-1451; E. C. Constable, T. Kulke, M. Neuburger, M. Zehnder, Chem. Commun. 1997, 489-490; E. J. Enemark, T. D. P. Stack, ibid. 1995, 107, 1082-1084 and 1995, 34, 996-998; R. Krämer, J.-M. Lehn, A. DeCian, J. Fischer, ibid. 1993, 105, 764-768 and 1993, 32, 703-706; R. C. Scarrow, D. L. White, K. N. Raymond, J. Am. Chem. Soc. 1985, 107, 6540-6546; C. J. Carrano, K. N. Raymond, ibid. 1978, 100, 5371-5374; B. Kersting, M. Meyer, R. E. Powers, K. N. Raymond, ibid. 1996, 118, 7221-7222; A. Williams, Chem. Eur. J. 1997, 3, 15-19: L. J. Charbonniere, A. F. Williams, U. Frey, A. E. Merbach, P. Kamalaprija, O. Schaad, J. Am. Chem. Soc. 1997, 119, 2488-2496: C. Piguet, G. Bernardinelli, A. F. Williams, B. Bocquet, Angew. Chem. 1995, 107, 618-621; Angew. Chem. Int. Ed. Engl. 1995, 34, 582-584.
62. E. C. Constable, Tetrahedron 1992, 48, 10013-10059; E. C. Constable, Angew. Chem. 1991, 103, 1482-1483; Angew. Chem. Int. Ed. Engl. 1991, 30, 1450-1451; E. C. Constable, T. Kulke, M. Neuburger, M. Zehnder, Chem. Commun. 1997, 489-490; E. J. Enemark, T. D. P. Stack, ibid. 1995, 107, 1082-1084 and 1995, 34, 996-998; R. Krämer, J.-M. Lehn, A. DeCian, J. Fischer, ibid. 1993, 105, 764-768 and 1993, 32, 703-706; R. C. Scarrow, D. L. White, K. N. Raymond, J. Am. Chem. Soc. 1985, 107, 6540-6546; C. J. Carrano, K. N. Raymond, ibid. 1978, 100, 5371-5374; B. Kersting, M. Meyer, R. E. Powers, K. N. Raymond, ibid. 1996, 118, 7221-7222; A. Williams, Chem. Eur. J. 1997, 3, 15-19: L. J. Charbonniere, A. F. Williams, U. Frey, A. E. Merbach, P. Kamalaprija, O. Schaad, J. Am. Chem. Soc. 1997, 119, 2488-2496: C. Piguet, G. Bernardinelli, A. F. Williams, B. Bocquet, Angew. Chem. 1995, 107, 618-621; Angew. Chem. Int. Ed. Engl. 1995, 34, 582-584.
63. E. C. Constable, Tetrahedron 1992, 48, 10013-10059; E. C. Constable, Angew. Chem. 1991, 103, 1482-1483; Angew. Chem. Int. Ed. Engl. 1991, 30, 1450-1451; E. C. Constable, T. Kulke, M. Neuburger, M. Zehnder, Chem. Commun. 1997, 489-490; E. J. Enemark, T. D. P. Stack, ibid. 1995, 107, 1082-1084 and 1995, 34, 996-998; R. Krämer, J.-M. Lehn, A. DeCian, J. Fischer, ibid. 1993, 105, 764-768 and 1993, 32, 703-706; R. C. Scarrow, D. L. White, K. N. Raymond, J. Am. Chem. Soc. 1985, 107, 6540-6546; C. J. Carrano, K. N. Raymond, ibid. 1978, 100, 5371-5374; B. Kersting, M. Meyer, R. E. Powers, K. N. Raymond, ibid. 1996, 118, 7221-7222; A. Williams, Chem. Eur. J. 1997, 3, 15-19: L. J. Charbonniere, A. F. Williams, U. Frey, A. E. Merbach, P. Kamalaprija, O. Schaad, J. Am. Chem. Soc. 1997, 119, 2488-2496: C. Piguet, G. Bernardinelli, A. F. Williams, B. Bocquet, Angew. Chem. 1995, 107, 618-621; Angew. Chem. Int. Ed. Engl. 1995, 34, 582-584.
64. M. Becke-Goehring, H. Hoffmann, Komplexchemie, Springer, Berlin, 1970, pp. 26ff.
65. Synthesis according to ref. [18]: dimethyl-2,6-pyridine dicarboxylate, sodium methanolate and 3,3-dimethyl-2-butanone in dry THF at 65°C (3 h) and work-up with acetic acid (12.5%).
66. D. E. Fenton, J. R. Tate, Inorg. Chim. Acta. 1984, 83, 23-31.
67. +.
68. 57Co(Rh) source. Isomer shifts are given relative to α-Fe at room temperature. Spectra in zero and 20 mT field were measured in a bath cryostate (MD 306) and spectra in 5.3 T field in a cryostat equipped with a superconducting split coil, both from Oxford Instruments.
69. A. X. Trautwein, E. Bill, E. L. Bominaar, H. Winkler, Iron-Containing Proteins and Related Analogs - Complementary Mössbauer, EPR and Magnetic Susceptibilitt Studies, Structure and Bonding, 1991, 78, 1-96.