Synthesis and structure of [BpBut,Pri]2Co: A bis(pyrazolyl)hydroborato cobalt(II) complex with trans [Co⋯H-B] interactions

Journal of the Chemical Society - Dalton Transactions

Volumn , Issue 17, 1998, Pages 2779-2781

  Ghosh, Prasenjit ^a   Bonanno, Jeffrey B ^a   Parkin, Gerard ^a  

^a Och Spine at New York Presbyterian Hospitals   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 33749094759     PISSN: 03009246     EISSN: None     Source Type: Journal    
DOI: 10.1039/a803862g     Document Type: Article

References (20)

1. F. A. Cotton and G. Wilkinson, Advanced Inorganic Chemistry, John Wiley & Sons, New York, 1998.
2. See, for example: A. Haaland, W. Scherer, K. Ruund, G. S. McGrady, A. J. Downs and O. Swang, J. Am. Chem. Soc., 1998, 120, 3762.
3. 2Bp]. See: S. Trofimenko, Chem. Rev. 1993, 93, 943;
4. G. Parkin, Adv. Inorg. Chem., 1995, 42, 291.
5. 4b have also been synthesized, but IR and metrical data have not been reported. (a) S. Trofimenko, J. Am. Chem. Soc., 1967, 89, 6288;
6. (b) S. Trofimenko, Inorg. Chem., 1970, 9, 2493.
7. S. Trofimenko, J. C. Calabrese and J. S. Thompson, Inorg. Chem., 1987, 26, 1507.
8. 3: C, 51.3; H, 7.6; N, 11.4%).
9. -1]. See: S. Trofimenko, J. C. Calabrese and J. S. Thompson, Angew. Chem., Int. Ed. Engl., 1989, 28, 205;
10. S. Trofimenko, J. C. Calabrese and J. S. Thompson, Inorg. Chem., 1992, 31, 974.
11. 8b (a) J. P. Jesson, S. Trofimenko and D. R. Eaton, J. Am. Chem. Soc., 1967, 89, 3148;
12. (b) S. Trofimenko, F. B. Hulsbergen and J. Reedijk, Inorg. Chim. Acta, 1991, 183, 203.
13. -1. See: J. C. Calabrese, P. J. Domaille, J. S. Thompson and S. Trofimenko, Inorg. Chem., 1990, 29, 4429.
14. For further comparison, the mean terminal Co-H bond length for complexes listed in the Cambridge Structural Database is 1.45 Å, with a range of 1.12-1.71 Å. CSD Version 5.14. 3D Search and Research Using the Cambridge Structural Database, F. H. Allen and O. Kennard, Chem. Des. Automat. News, 1993, 8, pp. 1 and 31-37.
15. -1, corresponding to v(B-H)/v(B-D) ratios of 1.34 and 1.33/1.32.
16. -1 (rf. 5). Trofimenko has also noted that pyrazabole exhibits a complex set of absorptions in both the solid state and solution. See: S. Trofimenko, J. Am. Chem. Soc., 1967, 89, 3165.
17. In fact, the preference for Co(II) to adopt tetrahedral co-ordination is so high that it is cited as forming more tetrahedral complexes than that of any other transition metal. See ref. 1.
18. 2Co are a result of interligand steric interactions between the 3-methyl substituents. See: H. Kokusen, Y. Sohrin, M. Matsui, Y. Hata and H. Hasegawa, J. Chem. Soc., Dalton Trans., 1996, 195.
19. 2B] fragments into a "deep boat" conformation which may have the effect of forcing the B-H groups closer to a metal. See ref. 9.
20. 2Co derivatives.