Synthesis, X-ray crystal structure, and reactivity of Y(MAC)(CH2SiMe3)2 (MAC = deprotonated aza-18-crown-6)

Organometallics

Volumn 16, Issue 9, 1997, Pages 1819-1821

  Lee, Lawrence ^a   Berg, David J ^a   Einstein, Frederick W ^b   Batchelor, Raymond J ^b  

^a UNIVERSITY OF VICTORIA   (Canada)

^b SIMON FRASER UNIVERSITY   (Canada)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0001195975     PISSN: 02767333     EISSN: None     Source Type: Journal    
DOI: 10.1021/om960708f     Document Type: Article

References (52)

1. See for example: (a) Marks, T. J.; Ernst, R. D. In Comprehensive Organometallic Chemistry; Marks, T. J., Ed.; Pergamon Press: New York, 1982; p 173. (b) Evans, W. J. Adv. Organomet. Chem. 1985, 24, 131. (c) Schumann, H. Angew. Chem., Int. Ed. Engl. 1984, 23, 474. (d) Evans, W. J. Polyhedron 1988, 7, 1693.
2. See for example: (a) Marks, T. J.; Ernst, R. D. In Comprehensive Organometallic Chemistry; Marks, T. J., Ed.; Pergamon Press: New York, 1982; p 173. (b) Evans, W. J. Adv. Organomet. Chem. 1985, 24, 131. (c) Schumann, H. Angew. Chem., Int. Ed. Engl. 1984, 23, 474. (d) Evans, W. J. Polyhedron 1988, 7, 1693.
3. See for example: (a) Marks, T. J.; Ernst, R. D. In Comprehensive Organometallic Chemistry; Marks, T. J., Ed.; Pergamon Press: New York, 1982; p 173. (b) Evans, W. J. Adv. Organomet. Chem. 1985, 24, 131. (c) Schumann, H. Angew. Chem., Int. Ed. Engl. 1984, 23, 474. (d) Evans, W. J. Polyhedron 1988, 7, 1693.
4. See for example: (a) Marks, T. J.; Ernst, R. D. In Comprehensive Organometallic Chemistry; Marks, T. J., Ed.; Pergamon Press: New York, 1982; p 173. (b) Evans, W. J. Adv. Organomet. Chem. 1985, 24, 131. (c) Schumann, H. Angew. Chem., Int. Ed. Engl. 1984, 23, 474. (d) Evans, W. J. Polyhedron 1988, 7, 1693.
5. (a) Arnold, J.; Hoffmann, C. G. J. Am. Chem. Soc. 1990, 112, 8620.
6. (b) Schaverien, C. J.; Orpen, A. G. Inorg. Chem. 1991, 30, 4968.
7. (c) Schaverien, C. J. J. Chem. Soc., Chem. Commun. 1991, 458.
8. (d) Arnold, J.; Hoffmann, C. G.; Dawson, D. Y.; Hollander, F. J. Organometallics 1993, 12, 3645.
9. (e) Brand, H.; Arnold, J. Organometallics 1993, 12, 3655.
10. (f) Brand, H.; Arnold, J. Angew. Chem., Int. Ed. Engl. 1994, 33, 95.
11. (a) Jubb, J.; Gambarotta, S. J. Am. Chem. Soc. 1994, 116, 4477.
12. (b) Song, J.; Gambarotta, S. Angew. Chem., Int. Ed. Engl. 1995, 34, 2141.
13. (a) Lee, L.; Berg, D. J.; Bushnell, G. W. Inorg. Chem. 1994, 33, 5302.
14. (b) Lee, L.; Berg, D. J.; Bushnell, G. W. Organometallics 1995, 14, 8.
15. (c) Lee, L.; Berg, D. J.; Bushnell, G. W. Organometallics 1995, 15, 5021.
16. For examples of neutral yttrium or lanthanide dialkyls supported by Cp* ligation see: (a) Heeres, H. J.; Meetsma, A.; Teuben, J. H. J. Chem. Soc., Chem. Commun. 1988, 962. (b) Heeres, H. J.; Meetsma, A.; Teuben, J. H.; Rogers, R. D. Organometallics 1989, 8, 2637. (c) van der Heijden, H.; Schaverien, C. J.; Orpen, A. G. Organometallics 1989, 8, 255. (d) Schaverien, C. J.; van der Heijden, H.; Orpen, A. G. Polyhedron 1989, 8, 1850. (e) van der Heijden, H.; Pasman, P.; de Boer, E. J. M.; Schaverien, C. J. Organometallics 1989, 8, 1459. (f) Schaverien, C. J. Organometallics 1992, 11, 3476. (g) Schaverien, C. J. Organometallics 1994, 13, 69.
17. For examples of neutral yttrium or lanthanide dialkyls supported by Cp* ligation see: (a) Heeres, H. J.; Meetsma, A.; Teuben, J. H. J. Chem. Soc., Chem. Commun. 1988, 962. (b) Heeres, H. J.; Meetsma, A.; Teuben, J. H.; Rogers, R. D. Organometallics 1989, 8, 2637. (c) van der Heijden, H.; Schaverien, C. J.; Orpen, A. G. Organometallics 1989, 8, 255. (d) Schaverien, C. J.; van der Heijden, H.; Orpen, A. G. Polyhedron 1989, 8, 1850. (e) van der Heijden, H.; Pasman, P.; de Boer, E. J. M.; Schaverien, C. J. Organometallics 1989, 8, 1459. (f) Schaverien, C. J. Organometallics 1992, 11, 3476. (g) Schaverien, C. J. Organometallics 1994, 13, 69.
18. For examples of neutral yttrium or lanthanide dialkyls supported by Cp* ligation see: (a) Heeres, H. J.; Meetsma, A.; Teuben, J. H. J. Chem. Soc., Chem. Commun. 1988, 962. (b) Heeres, H. J.; Meetsma, A.; Teuben, J. H.; Rogers, R. D. Organometallics 1989, 8, 2637. (c) van der Heijden, H.; Schaverien, C. J.; Orpen, A. G. Organometallics 1989, 8, 255. (d) Schaverien, C. J.; van der Heijden, H.; Orpen, A. G. Polyhedron 1989, 8, 1850. (e) van der Heijden, H.; Pasman, P.; de Boer, E. J. M.; Schaverien, C. J. Organometallics 1989, 8, 1459. (f) Schaverien, C. J. Organometallics 1992, 11, 3476. (g) Schaverien, C. J. Organometallics 1994, 13, 69.
19. For examples of neutral yttrium or lanthanide dialkyls supported by Cp* ligation see: (a) Heeres, H. J.; Meetsma, A.; Teuben, J. H. J. Chem. Soc., Chem. Commun. 1988, 962. (b) Heeres, H. J.; Meetsma, A.; Teuben, J. H.; Rogers, R. D. Organometallics 1989, 8, 2637. (c) van der Heijden, H.; Schaverien, C. J.; Orpen, A. G. Organometallics 1989, 8, 255. (d) Schaverien, C. J.; van der Heijden, H.; Orpen, A. G. Polyhedron 1989, 8, 1850. (e) van der Heijden, H.; Pasman, P.; de Boer, E. J. M.; Schaverien, C. J. Organometallics 1989, 8, 1459. (f) Schaverien, C. J. Organometallics 1992, 11, 3476. (g) Schaverien, C. J. Organometallics 1994, 13, 69.
20. For examples of neutral yttrium or lanthanide dialkyls supported by Cp* ligation see: (a) Heeres, H. J.; Meetsma, A.; Teuben, J. H. J. Chem. Soc., Chem. Commun. 1988, 962. (b) Heeres, H. J.; Meetsma, A.; Teuben, J. H.; Rogers, R. D. Organometallics 1989, 8, 2637. (c) van der Heijden, H.; Schaverien, C. J.; Orpen, A. G. Organometallics 1989, 8, 255. (d) Schaverien, C. J.; van der Heijden, H.; Orpen, A. G. Polyhedron 1989, 8, 1850. (e) van der Heijden, H.; Pasman, P.; de Boer, E. J. M.; Schaverien, C. J. Organometallics 1989, 8, 1459. (f) Schaverien, C. J. Organometallics 1992, 11, 3476. (g) Schaverien, C. J. Organometallics 1994, 13, 69.
21. For examples of neutral yttrium or lanthanide dialkyls supported by Cp* ligation see: (a) Heeres, H. J.; Meetsma, A.; Teuben, J. H. J. Chem. Soc., Chem. Commun. 1988, 962. (b) Heeres, H. J.; Meetsma, A.; Teuben, J. H.; Rogers, R. D. Organometallics 1989, 8, 2637. (c) van der Heijden, H.; Schaverien, C. J.; Orpen, A. G. Organometallics 1989, 8, 255. (d) Schaverien, C. J.; van der Heijden, H.; Orpen, A. G. Polyhedron 1989, 8, 1850. (e) van der Heijden, H.; Pasman, P.; de Boer, E. J. M.; Schaverien, C. J. Organometallics 1989, 8, 1459. (f) Schaverien, C. J. Organometallics 1992, 11, 3476. (g) Schaverien, C. J. Organometallics 1994, 13, 69.
22. For examples of neutral yttrium or lanthanide dialkyls supported by Cp* ligation see: (a) Heeres, H. J.; Meetsma, A.; Teuben, J. H. J. Chem. Soc., Chem. Commun. 1988, 962. (b) Heeres, H. J.; Meetsma, A.; Teuben, J. H.; Rogers, R. D. Organometallics 1989, 8, 2637. (c) van der Heijden, H.; Schaverien, C. J.; Orpen, A. G. Organometallics 1989, 8, 255. (d) Schaverien, C. J.; van der Heijden, H.; Orpen, A. G. Polyhedron 1989, 8, 1850. (e) van der Heijden, H.; Pasman, P.; de Boer, E. J. M.; Schaverien, C. J. Organometallics 1989, 8, 1459. (f) Schaverien, C. J. Organometallics 1992, 11, 3476. (g) Schaverien, C. J. Organometallics 1994, 13, 69.
23. For some neutral lanthanide trialkyls see ref 2b above and the following: (a) Schumann, H.; Müller, J. J. Organomet. Chem. 1978, 146, C5. (b) Schumann, H.; Müller, J. J. Organomet. Chem. 1979, 169, C1. (c) Manzer, L. J. Am. Chem. Soc. 1978, 100, 8068. (d) Manzer, L. J. Organomet. Chem. 1977, 135, C6. (e) Wayda, A. L.; Atwood, J. L.; Hunter, W. E. Organometallics 1984, 3, 939. (f) Bochkarev, M. N.; Khramenkov, V. V.; Rad'kov, Y. F.; Zakharov, L. N.; Struchkov, Y. T. J. Organomet. Chem. 1992, 429, 27. (g) Barker, G. K.; Lappert, M. F. J. Organomet. Chem. 1974, 76, C45. (h) Hitchcock, P. B.; Lappert, M. F.; Smith, R. G.; Bartlett, R. A.; Power, P. P. J. Chem. Soc., Chem. Commun. 1988, 1007. (i) Atwood, J. L.; Lappert, M. F.; Smith, R. G.; Zhang, H. J. Chem. Soc., Chem. Commun. 1988, 1308. (j) Lappert, M. F.; Pearce, R. J. Chem. Soc., Chem. Commun. 1973, 126.
24. For some neutral lanthanide trialkyls see ref 2b above and the following: (a) Schumann, H.; Müller, J. J. Organomet. Chem. 1978, 146, C5. (b) Schumann, H.; Müller, J. J. Organomet. Chem. 1979, 169, C1. (c) Manzer, L. J. Am. Chem. Soc. 1978, 100, 8068. (d) Manzer, L. J. Organomet. Chem. 1977, 135, C6. (e) Wayda, A. L.; Atwood, J. L.; Hunter, W. E. Organometallics 1984, 3, 939. (f) Bochkarev, M. N.; Khramenkov, V. V.; Rad'kov, Y. F.; Zakharov, L. N.; Struchkov, Y. T. J. Organomet. Chem. 1992, 429, 27. (g) Barker, G. K.; Lappert, M. F. J. Organomet. Chem. 1974, 76, C45. (h) Hitchcock, P. B.; Lappert, M. F.; Smith, R. G.; Bartlett, R. A.; Power, P. P. J. Chem. Soc., Chem. Commun. 1988, 1007. (i) Atwood, J. L.; Lappert, M. F.; Smith, R. G.; Zhang, H. J. Chem. Soc., Chem. Commun. 1988, 1308. (j) Lappert, M. F.; Pearce, R. J. Chem. Soc., Chem. Commun. 1973, 126.
25. For some neutral lanthanide trialkyls see ref 2b above and the following: (a) Schumann, H.; Müller, J. J. Organomet. Chem. 1978, 146, C5. (b) Schumann, H.; Müller, J. J. Organomet. Chem. 1979, 169, C1. (c) Manzer, L. J. Am. Chem. Soc. 1978, 100, 8068. (d) Manzer, L. J. Organomet. Chem. 1977, 135, C6. (e) Wayda, A. L.; Atwood, J. L.; Hunter, W. E. Organometallics 1984, 3, 939. (f) Bochkarev, M. N.; Khramenkov, V. V.; Rad'kov, Y. F.; Zakharov, L. N.; Struchkov, Y. T. J. Organomet. Chem. 1992, 429, 27. (g) Barker, G. K.; Lappert, M. F. J. Organomet. Chem. 1974, 76, C45. (h) Hitchcock, P. B.; Lappert, M. F.; Smith, R. G.; Bartlett, R. A.; Power, P. P. J. Chem. Soc., Chem. Commun. 1988, 1007. (i) Atwood, J. L.; Lappert, M. F.; Smith, R. G.; Zhang, H. J. Chem. Soc., Chem. Commun. 1988, 1308. (j) Lappert, M. F.; Pearce, R. J. Chem. Soc., Chem. Commun. 1973, 126.
26. For some neutral lanthanide trialkyls see ref 2b above and the following: (a) Schumann, H.; Müller, J. J. Organomet. Chem. 1978, 146, C5. (b) Schumann, H.; Müller, J. J. Organomet. Chem. 1979, 169, C1. (c) Manzer, L. J. Am. Chem. Soc. 1978, 100, 8068. (d) Manzer, L. J. Organomet. Chem. 1977, 135, C6. (e) Wayda, A. L.; Atwood, J. L.; Hunter, W. E. Organometallics 1984, 3, 939. (f) Bochkarev, M. N.; Khramenkov, V. V.; Rad'kov, Y. F.; Zakharov, L. N.; Struchkov, Y. T. J. Organomet. Chem. 1992, 429, 27. (g) Barker, G. K.; Lappert, M. F. J. Organomet. Chem. 1974, 76, C45. (h) Hitchcock, P. B.; Lappert, M. F.; Smith, R. G.; Bartlett, R. A.; Power, P. P. J. Chem. Soc., Chem. Commun. 1988, 1007. (i) Atwood, J. L.; Lappert, M. F.; Smith, R. G.; Zhang, H. J. Chem. Soc., Chem. Commun. 1988, 1308. (j) Lappert, M. F.; Pearce, R. J. Chem. Soc., Chem. Commun. 1973, 126.
27. For some neutral lanthanide trialkyls see ref 2b above and the following: (a) Schumann, H.; Müller, J. J. Organomet. Chem. 1978, 146, C5. (b) Schumann, H.; Müller, J. J. Organomet. Chem. 1979, 169, C1. (c) Manzer, L. J. Am. Chem. Soc. 1978, 100, 8068. (d) Manzer, L. J. Organomet. Chem. 1977, 135, C6. (e) Wayda, A. L.; Atwood, J. L.; Hunter, W. E. Organometallics 1984, 3, 939. (f) Bochkarev, M. N.; Khramenkov, V. V.; Rad'kov, Y. F.; Zakharov, L. N.; Struchkov, Y. T. J. Organomet. Chem. 1992, 429, 27. (g) Barker, G. K.; Lappert, M. F. J. Organomet. Chem. 1974, 76, C45. (h) Hitchcock, P. B.; Lappert, M. F.; Smith, R. G.; Bartlett, R. A.; Power, P. P. J. Chem. Soc., Chem. Commun. 1988, 1007. (i) Atwood, J. L.; Lappert, M. F.; Smith, R. G.; Zhang, H. J. Chem. Soc., Chem. Commun. 1988, 1308. (j) Lappert, M. F.; Pearce, R. J. Chem. Soc., Chem. Commun. 1973, 126.
28. For some neutral lanthanide trialkyls see ref 2b above and the following: (a) Schumann, H.; Müller, J. J. Organomet. Chem. 1978, 146, C5. (b) Schumann, H.; Müller, J. J. Organomet. Chem. 1979, 169, C1. (c) Manzer, L. J. Am. Chem. Soc. 1978, 100, 8068. (d) Manzer, L. J. Organomet. Chem. 1977, 135, C6. (e) Wayda, A. L.; Atwood, J. L.; Hunter, W. E. Organometallics 1984, 3, 939. (f) Bochkarev, M. N.; Khramenkov, V. V.; Rad'kov, Y. F.; Zakharov, L. N.; Struchkov, Y. T. J. Organomet. Chem. 1992, 429, 27. (g) Barker, G. K.; Lappert, M. F. J. Organomet. Chem. 1974, 76, C45. (h) Hitchcock, P. B.; Lappert, M. F.; Smith, R. G.; Bartlett, R. A.; Power, P. P. J. Chem. Soc., Chem. Commun. 1988, 1007. (i) Atwood, J. L.; Lappert, M. F.; Smith, R. G.; Zhang, H. J. Chem. Soc., Chem. Commun. 1988, 1308. (j) Lappert, M. F.; Pearce, R. J. Chem. Soc., Chem. Commun. 1973, 126.
29. For some neutral lanthanide trialkyls see ref 2b above and the following: (a) Schumann, H.; Müller, J. J. Organomet. Chem. 1978, 146, C5. (b) Schumann, H.; Müller, J. J. Organomet. Chem. 1979, 169, C1. (c) Manzer, L. J. Am. Chem. Soc. 1978, 100, 8068. (d) Manzer, L. J. Organomet. Chem. 1977, 135, C6. (e) Wayda, A. L.; Atwood, J. L.; Hunter, W. E. Organometallics 1984, 3, 939. (f) Bochkarev, M. N.; Khramenkov, V. V.; Rad'kov, Y. F.; Zakharov, L. N.; Struchkov, Y. T. J. Organomet. Chem. 1992, 429, 27. (g) Barker, G. K.; Lappert, M. F. J. Organomet. Chem. 1974, 76, C45. (h) Hitchcock, P. B.; Lappert, M. F.; Smith, R. G.; Bartlett, R. A.; Power, P. P. J. Chem. Soc., Chem. Commun. 1988, 1007. (i) Atwood, J. L.; Lappert, M. F.; Smith, R. G.; Zhang, H. J. Chem. Soc., Chem. Commun. 1988, 1308. (j) Lappert, M. F.; Pearce, R. J. Chem. Soc., Chem. Commun. 1973, 126.
30. For some neutral lanthanide trialkyls see ref 2b above and the following: (a) Schumann, H.; Müller, J. J. Organomet. Chem. 1978, 146, C5. (b) Schumann, H.; Müller, J. J. Organomet. Chem. 1979, 169, C1. (c) Manzer, L. J. Am. Chem. Soc. 1978, 100, 8068. (d) Manzer, L. J. Organomet. Chem. 1977, 135, C6. (e) Wayda, A. L.; Atwood, J. L.; Hunter, W. E. Organometallics 1984, 3, 939. (f) Bochkarev, M. N.; Khramenkov, V. V.; Rad'kov, Y. F.; Zakharov, L. N.; Struchkov, Y. T. J. Organomet. Chem. 1992, 429, 27. (g) Barker, G. K.; Lappert, M. F. J. Organomet. Chem. 1974, 76, C45. (h) Hitchcock, P. B.; Lappert, M. F.; Smith, R. G.; Bartlett, R. A.; Power, P. P. J. Chem. Soc., Chem. Commun. 1988, 1007. (i) Atwood, J. L.; Lappert, M. F.; Smith, R. G.; Zhang, H. J. Chem. Soc., Chem. Commun. 1988, 1308. (j) Lappert, M. F.; Pearce, R. J. Chem. Soc., Chem. Commun. 1973, 126.
31. For some neutral lanthanide trialkyls see ref 2b above and the following: (a) Schumann, H.; Müller, J. J. Organomet. Chem. 1978, 146, C5. (b) Schumann, H.; Müller, J. J. Organomet. Chem. 1979, 169, C1. (c) Manzer, L. J. Am. Chem. Soc. 1978, 100, 8068. (d) Manzer, L. J. Organomet. Chem. 1977, 135, C6. (e) Wayda, A. L.; Atwood, J. L.; Hunter, W. E. Organometallics 1984, 3, 939. (f) Bochkarev, M. N.; Khramenkov, V. V.; Rad'kov, Y. F.; Zakharov, L. N.; Struchkov, Y. T. J. Organomet. Chem. 1992, 429, 27. (g) Barker, G. K.; Lappert, M. F. J. Organomet. Chem. 1974, 76, C45. (h) Hitchcock, P. B.; Lappert, M. F.; Smith, R. G.; Bartlett, R. A.; Power, P. P. J. Chem. Soc., Chem. Commun. 1988, 1007. (i) Atwood, J. L.; Lappert, M. F.; Smith, R. G.; Zhang, H. J. Chem. Soc., Chem. Commun. 1988, 1308. (j) Lappert, M. F.; Pearce, R. J. Chem. Soc., Chem. Commun. 1973, 126.
32. For some neutral lanthanide trialkyls see ref 2b above and the following: (a) Schumann, H.; Müller, J. J. Organomet. Chem. 1978, 146, C5. (b) Schumann, H.; Müller, J. J. Organomet. Chem. 1979, 169, C1. (c) Manzer, L. J. Am. Chem. Soc. 1978, 100, 8068. (d) Manzer, L. J. Organomet. Chem. 1977, 135, C6. (e) Wayda, A. L.; Atwood, J. L.; Hunter, W. E. Organometallics 1984, 3, 939. (f) Bochkarev, M. N.; Khramenkov, V. V.; Rad'kov, Y. F.; Zakharov, L. N.; Struchkov, Y. T. J. Organomet. Chem. 1992, 429, 27. (g) Barker, G. K.; Lappert, M. F. J. Organomet. Chem. 1974, 76, C45. (h) Hitchcock, P. B.; Lappert, M. F.; Smith, R. G.; Bartlett, R. A.; Power, P. P. J. Chem. Soc., Chem. Commun. 1988, 1007. (i) Atwood, J. L.; Lappert, M. F.; Smith, R. G.; Zhang, H. J. Chem. Soc., Chem. Commun. 1988, 1308. (j) Lappert, M. F.; Pearce, R. J. Chem. Soc., Chem. Commun. 1973, 126.
33. For some homoleptic, anionic lanthanide alkyls see: (a) Scahverien, C. J.; van Mechelen, J. B. Organometallics 1991, 10, 1704. (b) Schaverien, C. J.; Nesbitt, G. J. J. Chem. Soc., Dalton Trans. 1992, 157. (c) Schumann, H.; Müller, J.; Bruncks, N.; Lauke, H.; Pickardt, J.; Schwarz, H.; Eckert, K. Organometallics 1984, 3, 69. (d) Schumann, H.; Lauke, H.; Hahn, E.; Pickardt, J. J. Organomet. Chem. 1984, 263, 29. (e) Schumann, H.; Pickardt, J.; Bruncks, N. Angew. Chem., Int. Ed. Engl. 1981, 20, 120. (f) Wayda, A. L.; Evans, W. J. J. Am. Chem. Soc. 1978, 100, 7119. (g) Schumann, H.; Genthe, W.; Hahn, E.; Pickardt, J.; Schwarz, H.; Eckart, J. J. Organomet. Chem. 1986, 306, 215.
34. For some homoleptic, anionic lanthanide alkyls see: (a) Scahverien, C. J.; van Mechelen, J. B. Organometallics 1991, 10, 1704. (b) Schaverien, C. J.; Nesbitt, G. J. J. Chem. Soc., Dalton Trans. 1992, 157. (c) Schumann, H.; Müller, J.; Bruncks, N.; Lauke, H.; Pickardt, J.; Schwarz, H.; Eckert, K. Organometallics 1984, 3, 69. (d) Schumann, H.; Lauke, H.; Hahn, E.; Pickardt, J. J. Organomet. Chem. 1984, 263, 29. (e) Schumann, H.; Pickardt, J.; Bruncks, N. Angew. Chem., Int. Ed. Engl. 1981, 20, 120. (f) Wayda, A. L.; Evans, W. J. J. Am. Chem. Soc. 1978, 100, 7119. (g) Schumann, H.; Genthe, W.; Hahn, E.; Pickardt, J.; Schwarz, H.; Eckart, J. J. Organomet. Chem. 1986, 306, 215.
35. For some homoleptic, anionic lanthanide alkyls see: (a) Scahverien, C. J.; van Mechelen, J. B. Organometallics 1991, 10, 1704. (b) Schaverien, C. J.; Nesbitt, G. J. J. Chem. Soc., Dalton Trans. 1992, 157. (c) Schumann, H.; Müller, J.; Bruncks, N.; Lauke, H.; Pickardt, J.; Schwarz, H.; Eckert, K. Organometallics 1984, 3, 69. (d) Schumann, H.; Lauke, H.; Hahn, E.; Pickardt, J. J. Organomet. Chem. 1984, 263, 29. (e) Schumann, H.; Pickardt, J.; Bruncks, N. Angew. Chem., Int. Ed. Engl. 1981, 20, 120. (f) Wayda, A. L.; Evans, W. J. J. Am. Chem. Soc. 1978, 100, 7119. (g) Schumann, H.; Genthe, W.; Hahn, E.; Pickardt, J.; Schwarz, H.; Eckart, J. J. Organomet. Chem. 1986, 306, 215.
36. For some homoleptic, anionic lanthanide alkyls see: (a) Scahverien, C. J.; van Mechelen, J. B. Organometallics 1991, 10, 1704. (b) Schaverien, C. J.; Nesbitt, G. J. J. Chem. Soc., Dalton Trans. 1992, 157. (c) Schumann, H.; Müller, J.; Bruncks, N.; Lauke, H.; Pickardt, J.; Schwarz, H.; Eckert, K. Organometallics 1984, 3, 69. (d) Schumann, H.; Lauke, H.; Hahn, E.; Pickardt, J. J. Organomet. Chem. 1984, 263, 29. (e) Schumann, H.; Pickardt, J.; Bruncks, N. Angew. Chem., Int. Ed. Engl. 1981, 20, 120. (f) Wayda, A. L.; Evans, W. J. J. Am. Chem. Soc. 1978, 100, 7119. (g) Schumann, H.; Genthe, W.; Hahn, E.; Pickardt, J.; Schwarz, H.; Eckart, J. J. Organomet. Chem. 1986, 306, 215.
37. For some homoleptic, anionic lanthanide alkyls see: (a) Scahverien, C. J.; van Mechelen, J. B. Organometallics 1991, 10, 1704. (b) Schaverien, C. J.; Nesbitt, G. J. J. Chem. Soc., Dalton Trans. 1992, 157. (c) Schumann, H.; Müller, J.; Bruncks, N.; Lauke, H.; Pickardt, J.; Schwarz, H.; Eckert, K. Organometallics 1984, 3, 69. (d) Schumann, H.; Lauke, H.; Hahn, E.; Pickardt, J. J. Organomet. Chem. 1984, 263, 29. (e) Schumann, H.; Pickardt, J.; Bruncks, N. Angew. Chem., Int. Ed. Engl. 1981, 20, 120. (f) Wayda, A. L.; Evans, W. J. J. Am. Chem. Soc. 1978, 100, 7119. (g) Schumann, H.; Genthe, W.; Hahn, E.; Pickardt, J.; Schwarz, H.; Eckart, J. J. Organomet. Chem. 1986, 306, 215.
38. For some homoleptic, anionic lanthanide alkyls see: (a) Scahverien, C. J.; van Mechelen, J. B. Organometallics 1991, 10, 1704. (b) Schaverien, C. J.; Nesbitt, G. J. J. Chem. Soc., Dalton Trans. 1992, 157. (c) Schumann, H.; Müller, J.; Bruncks, N.; Lauke, H.; Pickardt, J.; Schwarz, H.; Eckert, K. Organometallics 1984, 3, 69. (d) Schumann, H.; Lauke, H.; Hahn, E.; Pickardt, J. J. Organomet. Chem. 1984, 263, 29. (e) Schumann, H.; Pickardt, J.; Bruncks, N. Angew. Chem., Int. Ed. Engl. 1981, 20, 120. (f) Wayda, A. L.; Evans, W. J. J. Am. Chem. Soc. 1978, 100, 7119. (g) Schumann, H.; Genthe, W.; Hahn, E.; Pickardt, J.; Schwarz, H.; Eckart, J. J. Organomet. Chem. 1986, 306, 215.
39. For some homoleptic, anionic lanthanide alkyls see: (a) Scahverien, C. J.; van Mechelen, J. B. Organometallics 1991, 10, 1704. (b) Schaverien, C. J.; Nesbitt, G. J. J. Chem. Soc., Dalton Trans. 1992, 157. (c) Schumann, H.; Müller, J.; Bruncks, N.; Lauke, H.; Pickardt, J.; Schwarz, H.; Eckert, K. Organometallics 1984, 3, 69. (d) Schumann, H.; Lauke, H.; Hahn, E.; Pickardt, J. J. Organomet. Chem. 1984, 263, 29. (e) Schumann, H.; Pickardt, J.; Bruncks, N. Angew. Chem., Int. Ed. Engl. 1981, 20, 120. (f) Wayda, A. L.; Evans, W. J. J. Am. Chem. Soc. 1978, 100, 7119. (g) Schumann, H.; Genthe, W.; Hahn, E.; Pickardt, J.; Schwarz, H.; Eckart, J. J. Organomet. Chem. 1986, 306, 215.
40. 2Y: C, 45.70; H, 8.82; N, 2.66. Found: C, 45.57; H, 8.51; N, 2.98.
41. The macrocycle was prepared by the procedure of: Maeda, H.; Furuyoshi, S.; Nakatsuji, Y.; Okahara, M. Bull. Chem. Soc. Jpn. 1983, 56, 212. The product was purified by sublimation and dried over 4 Å sieves in toluene solution prior to use.
42. o)) and 152 variables. The disorder of the structure was clearly evident and was modeled only for the MAC ligand atoms in the vicinity of O(8)/N(108), primarily because of the difference in the Y-O and Y-N bond lengths. Further details of the X-ray experimental procedure are provided in the Supporting Information.
43. Johnson, C. K. ORTEPII; Oak Ridge National Laboratory: Oak Ridge, TN, 1976.
44. 3) was discussed in ref 4b. The structural and spectroscopic similarities between this complex and 1 argue strongly against agostic interactions in the present case.
45. 2Y: C, 45.43; H, 7.97; N, 2.41. Found: C, 43.91; H, 7.48; N, 2.87. Despite repeated attempts, no better elemental analysis could be obtained.
46. 3). Sonnen-berger, D. C.; Mintz, E. A.; Marks, T. J. J. Am. Chem. Soc. 1984, 106, 3484.
47. 3). Sonnen-berger, D. C.; Mintz, E. A.; Marks, T. J. J. Am. Chem. Soc. 1984, 106, 3484.
48. 2b
49. 3 resonances, and the solution turned brown.
50. 2Ph) anion is characteristic of a noncoordinating anion: Horton, A. D.; de With, J.; van der Linden, A. J.; van de Weg, H. Organometallics 1996, 15, 2672.
51. A small amount of TMS is also produced in this reaction.
52. 8-THF regenerated the spectrum reported in ref 16 above.