Ethylxanthates and isopropylxanthates of nickel with triphenylphosphine as mixed π-acceptor ligand

Nickel(II)xanthates with triphenylphosphine as mixed π-acceptor ligand of the composition [NiX(RXa)(PPh 3)] (X = Cl, Br, I, NCS; R = Et, i-Pr; Xa = S 2CO −) have been prepared. All of these complexes have been characterized by elemental analysis, infrared and electronic absorption spectroscopy, magn...

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Published inPolyhedron Vol. 14; no. 12; pp. 1615 - 1620
Main Authors Pastorek, Richard, Trávníc̆ek, Zdenĕk, S̆indelár̆, Zdenĕk, Klic̆ka, Roman, Br̆ezina, Frantis̆ek, Marek, Jaromír
Format Journal Article
LanguageEnglish
Published OXFORD Elsevier Ltd 01.06.1995
Elsevier
Subjects
Chemistry
Chemistry, Inorganic & Nuclear
Crystallography
Physical Sciences
Science & Technology
CRYSTAL-STRUCTURE
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Summary:Nickel(II)xanthates with triphenylphosphine as mixed π-acceptor ligand of the composition [NiX(RXa)(PPh 3)] (X = Cl, Br, I, NCS; R = Et, i-Pr; Xa = S 2CO −) 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 NiS 2C1P has been proved by the X-ray structural analysis of the model [NiCl(i-PrXa)(PPh 3)] complex.
ISSN:0277-5387
DOI:10.1016/0277-5387(94)00433-F