The cathodic reduction of [(η3-C3H5)Pd(Ph2P-C2H4-PPh2)]+, A, in acetonitrile solution affords Pd(Ph2P-C2H4-PPh2)2, B, and Pd(η3-C3H5)2, C. Its cyclic voltammetric behaviour is studied as a function of scan rate and concentration of A. These results and relevant coulometric experiments indicate a primary reversible charge transfer reaction followed by a fast second order process producing P1 and P2. This picture is complicated by a subsequent reaction of B with A leading to a dimeric electroactive species which is reduced at a slightly more negative potential value than A. The rate constants of individual chemical reactions were evaluated by digital simulation and best fit with experimental results. © 1987.
Cathodic behaviour of [*η3-C3H5)Pd(Ph2P-C2H4-PPh2)]+ in acetonitrile solution: an electrochemical process involving very fast consecutive chemical reactions
DANIELE, Salvatore;UGO, Paolo;MAZZOCCHIN, Gian Antonio;
1987-01-01
Abstract
The cathodic reduction of [(η3-C3H5)Pd(Ph2P-C2H4-PPh2)]+, A, in acetonitrile solution affords Pd(Ph2P-C2H4-PPh2)2, B, and Pd(η3-C3H5)2, C. Its cyclic voltammetric behaviour is studied as a function of scan rate and concentration of A. These results and relevant coulometric experiments indicate a primary reversible charge transfer reaction followed by a fast second order process producing P1 and P2. This picture is complicated by a subsequent reaction of B with A leading to a dimeric electroactive species which is reduced at a slightly more negative potential value than A. The rate constants of individual chemical reactions were evaluated by digital simulation and best fit with experimental results. © 1987.
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