|
|||||
|
|
Ruthenium complexes containing tertiary phosphines and imidazole or 2,2′-bipyridine ligands |
|
| Authors: | Alzir A. Batista Edna A. Polato Salete L. Queiroz Otaciro R. Nascimento Brian R. James Steven J. Rettig |
| Affiliation: | a Departamento de Química, Universidade Federal de São Carlos, CP 676, 13560, São Carlos, SP, Brazil b Universidade de São Paulo, I.F.Q.U.S.P./SP, 13560, São Carlos, SP, Brazil c Department of Chemistry, University of British Columbia, Vancouver, BC, V6T 1Z1, Canada |
| Abstract: | Complexes RuCl3(PPh3)L2 (L = MeIm (1a, Im (1b)) and [RuCl2(PPh3)2(bipy)]Cl·4H2O (2) have been synthesized via the ruthenium(III) precursor RuCl3(PPh3)2 (DMA), and characterized, including an X-ray structural analysis for 1a (MeIm = N-methylimidazole, Im = imidazole, bipy = 2,2′-bipyridyl, and DMA = N, N′-dimethylacetamide). Crystals of 1a are monoclinic, space group P21/n, A = 10.5491(5), B = 20.4934(9), C = 12.8285(4) Å, β = 90.166(4)°, Z = 4. The structure, which reveals a mer configuration for the chlorides, and cis-methylimidazoles, was solved by conventional heavy atom methods and was refined by full-matrix least-square procedures to R = 0.041 and Rw = 0.042 for 3328 reflections with I 3σ(I). From the RuCl2(PPh3)3 precursor, the ruthenium(II) complexes RuCl2(PPh3)2L2 and [RuCl(PPh3)L4]Cl have been made (L = Im or MeIm), while [RuCl(dppb)Im3]Cl has been made from [RuCl2(dppb)]2(μ-dppb) (dppb = Ph2P(CH2)4PPh2). |
| Keywords: | Crystal structures Ruthenium complexes Tertiary phosphine complexes Imidazole complexes Bipyridine complexes |
| 本文献已被 ScienceDirect 等数据库收录！ | |