182181-57-3Relevant academic research and scientific papers
COD complexes: Synthesis, structure, dynamics and catalysis
Scherer, Johannes,Huttner, Gottfried,Walter, Olaf,Janssen, Bernd Christian,Zsolnai, Laszlo
, p. 1603 - 1615 (2007/10/03)
The reaction of the tripod ligands R′C(CH2PR2)3 (1a-c) and X2POCH[CH2P(Ph)2]2 (2a-c) with [Rh1CODjCij is investigated. It yields tripod rhodium COD complexes [(la-c)Rh'(COD)]Y (3a-c) and [(2a-c)Rh'(COD)]Y [4a-c; Y = B{Ph)4, PF6], The tripod ligand is coordinated by all three donor groups in each case, irrespective of the different donor capabilities of the coordinating groups. The solid state structure of compounds 3a-c and 4a is determined by X-ray analysis. The observed coordination polyhedra delineate the variation from the idealized trigonal bipyramide to an idealized quadratic pyramide. In solution die analysis of the NMR spectra shows a rapid intramolecular interconversion according to a turnstile pseudo rotation. The complexes 3a and 4a are found to be catalysts for the hydrogenation of prochiral olefines. VCH Verlagsgesellschaft mbH. 1996.
