On the synthesis and structures of the complexes [RuCl(L)(dppb)(N-N)]PF6 (L = CO, py or 4-NH2py; dppb=1,4-bis(diphenylphosphino)butane; N-N=2,2′-bipyridine or 1,10-phenanthroline) and [(dppb)(CO)Cl2-Ru-pz-RuCl2(CO)(dppb)] (pz = pyrazine)

被引：19
|
作者：
Frazao Barbosa, Marilia I. [2 ]
Valle, Eliana M. A. [2 ]
Queiroz, Salete L. [3 ]
Ellena, Javier [3 ]
Castellano, Eduardo E. [3 ]
Malta, Valeria R. S. [4 ]
de Sousa, Jackson R. [5 ]
Piro, Oscar [6 ]
de Araujo, Marcio P. [1 ]
Batista, Alzir A. [2 ]
机构：
[1] Univ Fed Parana, Dept Quim, BR-81531980 Curitiba, PR, Brazil
[2] Univ Fed Sao Carlos, Dept Quim, BR-13565905 Sao Carlos, SP, Brazil
[3] Univ Sao Paulo, BR-13560970 Sao Carlos, SP, Brazil
[4] Univ Fed Alagoas, Dept Quim, BR-57072970 Alagoas, AL, Brazil
[5] Univ Fed Ceara, Dept Quim Organ & Inorgan, Fortaleza, CE, Brazil
[6] Univ Nacl La Plata, Fac Ciencias Exactas, Dept Fis, RA-1900 La Plata, Argentina
来源：
POLYHEDRON | 2010年 / 29卷 / 11期
基金：
巴西圣保罗研究基金会;
关键词：
Ruthenium complexes; Diphenylphosphine; Structure; Carbonyl; X-RAY-STRUCTURE; STEREOSELECTIVE HYDROGENATION; PHOSPHINE/DIIMINE COMPLEXES; RUTHENIUM(II); ACTIVATION; MECHANISM; CATALYSIS; LIGAND;
D O I：
10.1016/j.poly.2010.04.028
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The "Ru(P-P)" unit (P-P = diphosphine) is recognized to be an important core in catalytic species for hydrogenation of unsaturated organic substrates. Thus, in this study we synthesized six new complexes containing this core, including the binuclear complex [(dppb)(CO)Cl2Ru-pz-RuCl2(CO)(dPPb)] (pz = pyrazine) which can be used as a precursor for the synthesis of cationic carbonyl species of general formula [RuCl(CO)(dppb)(N-N)]PF6 (N-N = diimine). Complexes with the formula (RuCl(py)(dppb)(N-N)]PF6 were synthesized by exhaustive electrolysis of these carbonyl compounds or from the precursors [RuCl2(dppb)(N-N)]. The new complexes were characterized by microanalysis, conductivity measurements, IR and P-31{H-1)} NMR spectroscopy, cyclic voltammetry and X-ray crystallography. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2297 / 2303
页数：7
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