Azulene as a ligand in cationic rhodium and iridium complexes. Crystal structure of [Rh(TFB)(az)]PF6 |
| |
Authors: | L.A. Oro M. Valderrama P. Cifuentes C. Foces-Foces F.H. Cano |
| |
Affiliation: | Departamento de Química Inorgánica, Universidad de Zaragoza, Zaragoza Spain;Facultad de Quimica, Pontificia Universidad Católica de Chile, Casilla 114-D, Santiago Chile;Departamento de Rayos X, Instituto Rocasolano, C.S.I.C., Serrano 119, Madrid-6 Spain |
| |
Abstract: | Rhodium or iridium complexes of formula [M(diolefin)(az)]+ have been prepared by treating [MCl(diolefin)]2 complexes with silver salts and azulene, and also by treating [Rh(diolefin)2]+ with azulene. The reactions of some representative complexes have been studied. Reaction of [M(C5Me5)(Me2CO)3]2+ with azulene appears to give dinuclear diazulene cationic complexes. The crystal structure of compound [Rh(TFB)(az)]PF6 has been solved by X-ray methods. It crystallizes in the space group P21/c with cell constants 8.4241(4), 16.6911(8), 15.0026(7) Å, 95.897(6)°. Refinement gave R = 0.027 and Rw = 0.032 for 2991 observed reflexions. The Rh atom is coordinated to the five-membered ring, with RhC distances shortest for the atoms which are trans to the diolefinic double bonds. The bonding scheme within the azulene ligand differs from that in the parent hydrocarbon. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|