Neutron diffraction study of [Nd(AlMe4)3] · 0.5 Al2Me6 at 100 K: The first detailed look at a bridging methyl group with a trigonal-bipyramidal carbon atom

Angewandte Chemie - International Edition

Volumn 37, Issue 9, 1998, Pages 1268-1270

  Klooster, Wim T ^b   Lu, Roy S ^c   Anwander, Reiner ^d   Evans, William J ^a   Koetzle, Thomas F ^b   Bau, Robert ^c  

^a UNIVERSITY OF CALIFORNIA   (United States)

^b BROOKHAVEN NATIONAL LABORATORY   (United States)

^c UNIVERSITY OF SOUTHERN CALIFORNIA   (United States)

^d TECHNICAL UNIVERSITY OF MUNICH   (Germany)

Author keywords

Aluminum; Bridging ligands; Coordination modes; Lanthanides; Pentacoordinate carbon

Indexed keywords

EID: 0032543081     PISSN: 14337851     EISSN: None     Source Type: Journal    
DOI: 10.1002/(SICI)1521-3773(19980518)37:9<1268::AID-ANIE1268>3.0.CO;2-Y     Document Type: Article

References (35)

1. a) J. Holton, M. F. Lappert, R. Pearce, P. I. W. Yarrow, Chem. Rev. 1983, 83, 135;
2. b) G. A. Olah, G. K. S. Prakash, R. E. Williams, Hypercarbon Chemistry, Wiley, New York, 1987.
3. a) M. Tachikawa, E. L. Muetterties, Prog. Inorg. Chem. 1981, 28, 203;
4. b) H. Schmidbaur, Chem. Soc. Rev. 1995, 24, 391.
5. For a listing of molecular parameters (distances and angles) involving bridging alkyl groups, see Table 5 in J. Holton, M. F. Lappert, D. G. H. Ballard, R. Pearce, J. L. Atwood, W. E. Hunter, J. Chem. Soc. Dalton Trans. 1979, 45. The subject of bridged hydrocarbyl transition metal complexes has also been reviewed in reference [1a].
6. [7]
7. E. Weiss, T. Lambertsen, B. Schubert, J. K. Cockcroft, A. Wiedenmann, Chem. Ber. 1990, 123, 79.
8. P. B. Hitchcock, J. A. K. Howard, M. F. Lappert, W. P. Leung, S. A. Mason, J. Chem. Soc. Chem. Commun. 1990, 847.
9. W. E. Rhine, G. D. Stucky, S. W. Peterson, J. Am. Chem. Soc. 1975, 97, 6401.
10. W. J. Evans, R. Anwander, J. W. Ziller, Organometallics 1995, 14, 1107.
11. a) R. G. Vranka, E. L. Amma, J. Am. Chem. Soc. 1967, 89, 3121;
12. b) S. K. Byram, J. K. Fawcett, S. C. Nyburg, R. J. O'Brien, J. Chem. Soc. Chem. Commun. 1970, 16;
13. c) J. C. Huffmann, W. E. Streib, ibid. 1971, 911.
14. W. J. Evans, R. Anwander, J. W. Ziller, S. I. Khan, Inorg. Chem. 1995, 34, 5927.
15. J. Holton, M. F. Lappert, D. G. H. Ballard, R. Pearce, J. L. Atwood, W. E. Hunter, J. Chem. Soc. Dalton Trans 1979, 54.
16. a) G. R. Scollary, Aust. J. Chem. 1978, 411;
17. b) M. A. Busch, R. Harlow, P. L. Watson, Inorg. Chim. Acta 1987, 140, 15;
18. c) W. J. Evans, L. R. Chamberlain, T. A. Ulibarri, J. W. Ziller, J. Am. Chem. Soc. 1988, 110, 6423.
19. R. M. Waymouth, B. D. Santarsiero, R. H. Grubbs, J. Am. Chem. Soc. 1984, 106, 4050.
20. P. L. Watson, G. W. Parshall, Acc. Chem. Res. 1985, 18, 51.
21. C. J. Burns, R. A. Andersen, J. Am. Chem. Soc. 1987, 109, 5853.
22. 3] used in this study was transported from California to New York in a Dewar filled with dry ice.
23. Full details (excluding structure factors) for the structure reported in this paper have been deposited with the Cambridge Crystallographic Data Centre as Supplementary Publication No. CCDC-100847. Copies of the data can be obtained free of charge on application to CCDC, 12 Union Road, Cambridge CB2 1EZ, UK (fax: (+44) 1223-336-033, e-mail: deposit@ccdc.cam.ac.uk).
24. [8] From the present neutron study, the six Nd-C distances range from 2.58(2) to 2.64(2) Å, and the Al-C distances range from 1.97(3) to 2.12(3). The angles involving the nonbridging methyl groups, C3-A11-C4, C7-A12-C8, and C11-A13-C12 (119.2(15), 116.8(13), and 119.0(13)°, respectively), are considerably larger than the other C-Al-C angles.
25. IV (1.09 Å) is used, an estimated Nd-H distance of 2.36 Å is obtained.
26. a) M. F. Lappert, A. Singh, J. L. Atwood, W. E. Hunter, H. M. Zhang, J. Chem. Soc. Chem. Commun. 1983, 69;
27. b) G. Jeske, H. Lauke, H. Mauermann, P. N. Swepston, H. Schumann, T. J. Marks, J. Am. Chem. Soc. 1985, 107, 8091;
28. c) G. Jeske, L. E. Schock, P. N. Swepston, H. Schumann, T. J. Marks, ibid. 1985, 107, 8103.
29. R. W. Broach, A. J. Schultz, J. M. Williams, J. M. Manriquez, P. J. Fagan, T. J. Marks, Science 1979, 203, 172.
30. R. D. Shannon, Acta Crystallogr. Sect. A 1976, A32, 751.
31. a) M. Brookhart, M. L. H. Green, J. Organometal. Chem. 1983, 250, 395;
32. b) M. Brookhart, M. L. H. Green, L. L. Wong, Prog. Inorg. Chem. 1988, 36, 1.
33. a) A. J. Schultz, J. M. Williams, R. R. Schrock, G. A. Rupprecht, J. D. Fellmann, J. Am. Chem. Soc. 1979, 101, 1593;
34. b) A. J. Schultz, R. K. Brown, J. M. Williams, R. R. Schrock, ibid. 1981, 103, 169;
35. c) Z. Dawoodi, M. L. H. Green, V. S. B. Mtetwa, K. Prout, A. J. Schultz, J. M. Williams, T. F. Koetzle, J. Chem. Soc. Dalton Trans. 1986, 1629.