Electrochemical Properties of (eta(5)-C5Me5)-Rhodium and - Iridium Complexes Containing Bis(pyrazolyl) alkane Ligands

被引:2
作者
Martins, Luisa M. D. R. S. [1 ,2 ]
Pettinari, Claudio [3 ]
Marchetti, Fabio [4 ]
Alegria, Elisabete C. B. A. [1 ,2 ]
Pombeiro, Armando J. L. [2 ]
机构
[1] ISEL, Chem Engn Dept, R Conselheiro Emidio Navarro, P-1959007 Lisbon, Portugal
[2] Univ Lisbon, Inst Super Tecn, Ctr Quim Estrutural, P-1049001 Lisbon, Portugal
[3] Univ Camerino, Sch Pharm, I-62032 Camerino, Italy
[4] Univ Camerino, Sch Sci & Technol, I-62032 Camerino, Italy
关键词
bis(pyrazolyl) alkane; rhodium(III) and iridium(III) complexes; cyclic voltammetry; controlled potential electrolysis;
D O I
10.4152/pea.201404253
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
The electrochemical properties of rhodium(III) 1-3 and iridium(III) 4-6 complexes containing bis(pyrazolyl) alkane ligands [MCp*Cl(R2C(3,5-R' (2)pz)(2))] X (M = Rh (1) or Ir (4), R = R' = H, X = Cl; M = Rh (2) or Ir (5), R = H, R' = Me, X = Cl; M = Rh (3) or Ir (6), R = Me, R' = H, X = OTf; pz = pyrazolyl; Cp* = eta(5)-C5Me5) were investigated by cyclic voltammetry and controlled potential electrolysis. They exhibit two sequential irreversible reductions assigned to the M-III -> M-II and M-II -> M-I reductions, which are dependent on the methylation of the bis(pyrazolyl) alkane ligands.
引用
收藏
页码:253 / 257
页数:5
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