F. Cotton, K. Hardcastle, G. A. Rusholme
Feb 1, 1973
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0
Influential Citations
31
Citations
Journal
Journal of Coordination Chemistry
Abstract
Abstract As part of a broader investigation of fluxional 5-coordinate, neutral complexes of transition metals, the detailed molecular structure of [bis(diphenylphosphino)methane]tricarbonyliron, (Ph2PCH2PPh2)(CO)3Fe, has been determined by X-ray crystallography. The crystals belong to the triclinic system and have the following unit cell dimensions: a=12.08(1)A; b=9.63(1)A; c=11.35(1)A; α=101.02(3)° β=90.92(2)° γ=101.13(3)°. d calc for Z=2: 1.33 g ml−1. d obs: 1.35(2) g ml−1. The structure was solved by Patterson and Fourier methods and refined using 2060 reflections collected with Mo Kα radiation on a manually operated General Electric counter diffractometer. Refinement, in space group P1, omitting hydrogen atoms, was terminated with R 1=0.063 and R 2=0.065. Some important dimensions of the molecule are: Fe-P, 2.209(3)A, 2.225(3)A; Fe-C, 1.74(1)A, 1.77(1)A, 1.77(1)A;< P-Fe-P, 73.5(1)°. The coordination geometry is intermediate between trigonal bipyramidal and square pyramidal and would naturally lead to ...