Cathodic behaviour of nickel(II) in acetonitrile in the presence of carbon monoxide and substituted phosphines |
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| Authors: | Gino Bontempelli Franco Magno Benedetto Corain Gilberto Schiavon |
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| Institution: | (1) Istituto di Chimica Analitica, University of Padova, via Marzolo 1, 35131 Padova, Italy;(2) C.N.R. Centro di Studi sulla Stabilità e Reattività del Composti di Coordinazione c/o Istituto di Chimica Analitica, University of Padova, via Marzolo 1, 35131 Padova, Italy;(3) C.N.R. Istituto di Polarografia ed Elettrochimica Preparativa, corso Stati Uniti 4, 35100 Padova, Italy |
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| Abstract: | Summary The reduction of nickel perchlorate in the presence of carbon monoxide and substituted phosphines or diphosphines has been studied in acetonitrile by cyclic voltammetry. The results show that only mono- and bis-carbonylphosphinenickel(O) complexes are formed, while no evidence for the formation of carbonyl-nickel(I) and -nickel(II) species was obtained. Although the oxidation processes are not reversible, a good correlation between the anodic peak potentials relative to nickel(O) complexes and the  -donor- -acceptor abilities of the phosphines employed was observed. |
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