Etienne, M., McGrady, J. E. and Maseras, F. (2009) Agostic interactions in alkyl derivatives of sterically hindered tris(pyrazolyl)borate complexes of niobium. Coordination Chemistry Reviews, 253(5-6), pp. 635-646. (doi: 10.1016/j.ccr.2008.07.016)
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Publisher's URL: http://dx.doi.org/10.1016/j.ccr.2008.07.016
Abstract
This review describes how the joint experimental and computational study of a series of niobium(tris(pyrazolyl))(chloride)(alkyne)(alkyl) complexes has unearthed a very rich chemistry involving a variety of agostic interactions between the alkyl chain and the niobium centre. α and β Csingle bondH agostic, as well as α Csingle bondC agostic coordination, have been observed, in some cases in dynamic equilibrium within the same complex. The application of experimental and computational (DFT and DFT/MM) techniques reveals the subtle interplay of steric and electronic interactions that control the relative stability of these species. This analysis also sheds light on the electronic origin of agostic distortions in early transition metal centres.
| Item Type: | Articles |
|---|---|
| Keywords: | Agostic interactions; Niobium complexes; Density functional theory; Density functional theory/molecular mechanics |
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | McGrady, Prof John |
| Authors: | Etienne, M., McGrady, J. E., and Maseras, F. |
| College/School: | College of Science and Engineering > School of Chemistry |
| Journal Name: | Coordination Chemistry Reviews |
| ISSN: | 0010-8545 |
| Published Online: | 07 August 2008 |
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