Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1299873 | Coordination Chemistry Reviews | 2009 | 12 Pages |
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 CH agostic, as well as α CC 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.
Related Topics
Physical Sciences and Engineering
Chemistry
Inorganic Chemistry
Authors
Michel Etienne, John E. McGrady, Feliu Maseras,