John M. Brown, P. L. Evans, P. Maddox
Jan 3, 1989
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0
Influential Citations
4
Citations
Journal
Journal of Organometallic Chemistry
Abstract
Abstract Addition of H 2 to bis( S,S )-2,3-bis(diphenylphosphino)butaneiridium(I) tetrafluoroborate gives a single stereoisomer, whose crystal structure has been determined. Crystal data for C 56 H 58 BF 4 IrP 4 : orthorhombic space group, P 2 1 2 1 2 1 , a 12.157 (3) b 22.586 (6) c 20.226 (5) A, Z = 4; the structure was refined to R = 0.061 and R ′ w = 0.081 for 5090 unique reflections (( I > 3σ( I )). The structure is compared with that of other hexacoordinate bis-biphosphine chelate complexes, and it is concluded that the stereospecificity of the hydrogen addition is steric in origin.