Kinetic Study of Substitution Reaction of Co2(μ-C2ph2)(CO)6

Chem. J. Chinese Universities ›› 1992, Vol. 13 ›› Issue (10): 1310.

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Kinetic Study of Substitution Reaction of Co₂(μ-C₂ph₂)(CO)₆

JIANG Fa-Ming, WANG Be-Kang, XU Cong-Ying, HE Jin-An, CHEN Han-Wen, DAI An-Bang

Department of Chemistry, Nanjing University, Nanjing, 210008

Received:1991-10-24 Revised:1992-02-25 Online:1992-10-24 Published:1992-10-24

Abstract

Abstract: The kinetics of substitution reaction for Co₂(μ-C₂ph₂)(CO)₆ with P(OBu)₃ and PCy₃ in decalin at 55° was studied.It is found that the reactions under the atmosphere of N₂ follow two different mechanisms: dissociation and association mechanism,and the reaction rate can be represented by the equation: k_obs=k₁+k₂[L].In addition,the dependence oi lgk₂ on the basicity and the size of entering ligands is also discussed.

Key words: μ-Diphenylacethylene-bis(tricarbonyl cobalt), Substitution reaction, Kinetics

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JIANG Fa-Ming, WANG Be-Kang, XU Cong-Ying, HE Jin-An, CHEN Han-Wen, DAI An-Bang . Kinetic Study of Substitution Reaction of Co₂(μ-C₂ph₂)(CO)₆[J]. Chem. J. Chinese Universities, 1992, 13(10): 1310.

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Kinetic Study of Substitution Reaction of Co₂(μ-C₂ph₂)(CO)₆

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