Structural factors influencing linear M-H-M bonding in bis(dialkylphosphino) methane complexes of nickel
by Tyree, W. S.; Vicic, D. A.; Piccoli, P. M. B.; Schultz, A. J.
Structural data for four closely related dinuclear nickel hydride complexes have been compared in order to gain insight into the factors governing the Ni-H-Ni geometries. The derivatives [( dippm)(2)Ni2X2]( A-H) [ dippm) 1,2-bis( diisopropylphosphino)methane] were found to contain a linear Ni - H - Ni bridge, whereas the derivatives [( dcpm)(2)Ni2X2]( mu-H) [ dcpm) 1,2-bis( dicyclohexylphosphino)-methane] were found to contain a bent Ni - H - Ni bridge. The number of internal and interatomic CH-to-halide contacts of the former were much shorter and more numerous than the latter, suggesting an important role of external forces in bridging hydride geometries.
- Journal
- Inorganic Chemistry
- Volume
- 45
- Issue
- 22
- Year
- 2006
- Start Page
- 8853-8855
- URL
- https://dx.doi.org/10.1021/ic0617036
- ISBN/ISSN
- 1520-510X; 0020-1669
- DOI
- 10.1021/ic0617036