Ethylxanthates and isopropylxanthates of nickel with triphenylphosphine as mixed π-acceptor ligand
作者:Richard Pastorek、Zdenĕk Trávníc̆ek、Zdenĕk S̆indelár̆、Roman Klic̆ka、Frantis̆ek Br̆ezina、Jaromír Marek
DOI:10.1016/0277-5387(94)00433-f
日期:1995.6
Nickel(II)xanthates with triphenylphosphine as mixed pi-acceptor ligand of the composition [NiX(RXa)(PPh(3))] (X = Cl, Pr, I, NCS; R = Et, i-Pr; Xa = S2CO- have been prepared. All of these complexes have been characterized by elemental analysis, infrared and electronic absorption spectroscopy, magnetochemical measurements, thermal analysis and conductivity measurements. The [NiI(RXa)(PPh(3))] complexes have been one-electron irreversibly oxidized which was determined by cyclic voltammetry. A distorted square-planar arrangement of the coordination sphere with chromophore NiS2ClP has been proved by the X-ray structural analysis of the model [NiCl(i-PrXa)(PPh(3))] complex.