Solution Thermochemical and Structural Studies of Ligand Substitution of N-Pyrrolyl Phosphine Ligands in the (p-cymene)RuCl2(PR3) System
Organometallics1998Vol. 17(1), pp. 104–110
Citations Over TimeTop 12% of 1998 papers
Abstract
The enthalpies of reaction of [(p-cymene)RuCl2]2 (p-cymene = (CH3)2CHC6H4CH3) with a series of N-substituted tertiary phosphine ligands, leading to the formation of (p-cymene)RuCl2(PR3) complexes (PR3 = tertiary phosphine) have been measured by solution calorimetry in CH2Cl2 at 30 °C. The overall relative order of stability, within this series, is as follows: P(NC4H4)3 < P(NC4H4)2(C6H5) < P(NC4H4)(C6H5)2 < P(NC4H8)3. Structural studies have been performed on three complexes in the (p-cymene)RuCl2(PR3) system, PR3 = P(NC4H4)3, P(NC4H4)2(C6H5), and PBz3. Thermochemical and structural data are compared to provide an understanding of the bonding involving these N-pyrrolyl-substituted phosphine ligands.
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