Pentabenzylcyclopentadienides of lithium

Organometallics

Volumn 15, Issue 22, 1996, Pages 4702-4706

  Dohmeier, Carsten ^a   Baum, Elke ^a   Ecker, Achim ^a   Köppe, Ralf ^a   Schnöckel, Hansgeorg ^a  

^a UNIVERSITY OF KARLSRUHE   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0000001747     PISSN: 02767333     EISSN: None     Source Type: Journal    
DOI: 10.1021/om960375m     Document Type: Article

References (34)

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2. For example, main-group-metal complexes containing the metal in formally low oxidation states: (a) Jutzi, P.; Kanne, D.; Krüger, C. Angew. Chem., Int. Ed. Engl. 1986, 25, 164-165. (b) Dohmeier, C.; Robl, C.; Tacke, M.; Schnöckel, H. Angew. Chem., Int. Ed. Engl. 1991, 30, 564-565.
3. For example, main-group-metal complexes containing the metal in formally low oxidation states: (a) Jutzi, P.; Kanne, D.; Krüger, C. Angew. Chem., Int. Ed. Engl. 1986, 25, 164-165. (b) Dohmeier, C.; Robl, C.; Tacke, M.; Schnöckel, H. Angew. Chem., Int. Ed. Engl. 1991, 30, 564-565.
4. See for example: Jutzi, P.; Leffers, W. J. Chem. Soc., Chem. Commun. 1985, 1735-1736.
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7. (b.) Schumann, H.; Janiak, C.; Pickardt, J.; Börner, U. Angew. Chem., Int. Ed. Engl. 1987, 26, 789-790.
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12. For a comparison of distances of alkali-metal cyclopentadienyl complexes, see for example: Stalke, D. Angew. Chem., Int. Ed. Engl. 1994, 33, 2168-2171.
13. Jutzi, P.; Schlüter, E.; Pohl, S.; Saak, W. Chem. Ber. 1985, 118, 1959-1967. Jutzi, P.; Leffers, W.; Pohl, S.; Saak, W. Chem. Ber. 1989, 122, 1449-1456.
14. Jutzi, P.; Schlüter, E.; Pohl, S.; Saak, W. Chem. Ber. 1985, 118, 1959-1967. Jutzi, P.; Leffers, W.; Pohl, S.; Saak, W. Chem. Ber. 1989, 122, 1449-1456.
15. (a) Harder, S.; Prosenc, S. H. Angew. Chem., Int. Ed. Engl. 1994, 33, 1744-1745.
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18. 2]: Earborn, C.; Hitchcock, P. B.; Smith, J. D.; Sullivan, A. C. J. Chem. Soc., Chem. Commun. 1983, 1390-1391. Ruhlandt-Senge, K.; Ellison, J. J.; Wehmschulte, R. J.; Pauer, F.; Power, P. P. J. Am. Chem. Soc. 1993, 115, 11353-11357.
19. 2]: Earborn, C.; Hitchcock, P. B.; Smith, J. D.; Sullivan, A. C. J. Chem. Soc., Chem. Commun. 1983, 1390-1391. Ruhlandt-Senge, K.; Ellison, J. J.; Wehmschulte, R. J.; Pauer, F.; Power, P. P. J. Am. Chem. Soc. 1993, 115, 11353-11357.
20. Piermarini, G. J.; Mighell, A. D.; Weir, C. E.; Block, S. Science 1969, 165, 1250-1255.
21. 2 the lattice constant a of the Fe compound is smaller, whereas the lattice constants b and c of the two compounds discussed here are very similar. (Schumann, H.; Janiak, C.; Köhn, R. D.; Loebel, J.; Dietrich, A. J. Organomet. Chem. 1989, 365, 137-150).
22. E.g.: (a) Cram, J. M. In Container Molecules and their Guests; Stoddard, J. F., Ed.; The Royal Society of Chemistry: Cambridge, U.K., 1994; Chapter 6, p 107. (b) Cram, D. J.; et al. J. Am. Chem. Soc. 1992, 114, 7748.
23. E.g.: (a) Cram, J. M. In Container Molecules and their Guests; Stoddard, J. F., Ed.; The Royal Society of Chemistry: Cambridge, U.K., 1994; Chapter 6, p 107. (b) Cram, D. J.; et al. J. Am. Chem. Soc. 1992, 114, 7748.
24. (a) Paquette, L. A.; Bauer, W.; Sivik, M. R.; Bühl, M.; Feigel, M.; Schleyer, P. v. R. J. Am. Chem. Soc. 1990, 112, 8776-8789.
25. (b) Bauer, W.; O'Doherty, G. A.; Schleyer, P. v. R.; Paquette, L. A. J. Am. Chem. Soc. 1991, 113, 7093-7100. The semiempirical calculations presented in (a) and (b) reveal the same trend as our ab initio calculations.
26. Harder, S.; Prosenc, M. H. Angew. Chem., Int. Ed. Engl. 1996, 35, 97-99.
27. -, d(Li-C) = 2.374 Å.
28. Evans, W. J.; Boyle, T. J.; Ziller, J. W. Organometallics 1992, 11, 3903-3907.
29. 5) to be the dominant species over the measured concentration range.
30. + is normal, the second is split over two positions (occupation number 0.25). Whether this is a disorder or an overstructure problem could not be decided because of the low crystal quality.
31. Dohmeier, C.; Schnöckel, H.; Robl, C.; Schneider, U.; Ahlrichs, R. Angew. Chem., Int. Ed. Engl. 1993, 32, 1655-1657.
32. Hirsch, S. S.; Bailey, W. J. J. Org. Chem. 1978, 43, 4090-4094.
33. International Tables for X-ray Crystallography; Kynoch Press: Birmingham; U.K., 1974; Vol. IV.
34. Ahlrichs, R.; Bär, M.; Häser, M.; Horn, H.; Kölmel, C. Chem. Phys. Lett. 1989, 162, 165-169.