I. D. Mckay, N. C. Payne
Sep 1, 1986
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0
Influential Citations
6
Citations
Journal
Canadian Journal of Chemistry
Abstract
The crystal structure and absolute configuration of (bicyclo[2.2.1]hepta-2,5-diene)[N,N-dimethyl-1(R)-(o-(bis(tert-butyl)phosphino)phenyl)ethylamine]rhodium(I) perchlorate, [Rh(R-dibutphos)(C7H8)]ClO4, have been determined from three-dimensional X-ray data collected by counter methods. The complex crystallizes in the orthorhombic space group P212121 with four formula units in a cell of dimensions a = 15.773(3), b = 18.660(4), and c = 8.990(3) A. Full-matrix least-squares techniques on F, using 2257 reflections with F > 1.5σ(F), were used to refine the structure to a final agreement factor of R1 = 0.042. The cation displays a small tetrahedral distortion from square planar geometry (if the diene is viewed as a bidentate ligand) with Rh—P and Rh—N distances of 2.398(2) and 2.212(6) A, respectively. The absolute configuration of the aminophosphine ligand was determined to be R by the Bijvoet method. The six-membered chelate ring adopts a δ twist-boat conformation with the methyl substituent of the chiral C a...