Kinetics of CO Substitution of M2(CO)10(M=Mn,Re) with Py in the Presence of (p-CH2OC2H4)2TeO

Chem. J. Chinese Universities ›› 1993, Vol. 14 ›› Issue (4): 548.

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Kinetics of CO Substitution of M₂(CO)₁₀(M=Mn,Re) with Py in the Presence of (p-CH₂OC₂H₄)₂TeO

GAO Yi-Ci, SHEN Jian-Kun, SHI Qi-Zhen

Department of Chemistry, Lanzhou University, Lanzhou, 730000

Received:1992-07-07 Revised:1992-10-28 Online:1993-04-24 Published:1993-04-24

Abstract

Abstract: Reported are the rates of reaction and activation parameters for COsubstitution reaction of M₂(CO)₁₀(M=Mn,Re) with Py in the presence of (p-CH₃OCeH₄)₂TeO.The rate of reaction is the first order in concentrations of M₂(CO)₁₀ and of (p-CH₃OC₆H₄)₂TeO, but zero order in Py.One possible mechanism.is suggested for the reaction, which is similar to that proposed earlier for the corresponding reactions with (CH₃)₃NO as the O-atom transfer reagent.The difference of activities between (CH₃)₃NOand (p-CH₃OC₆H₄)₂TeO is discussed in terms of their basicity in this paper.

Key words: Mn₂(CO)₁₀, Re₂(CO)₁₀, O-atom transfer reaction, Kinetic

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GAO Yi-Ci, SHEN Jian-Kun, SHI Qi-Zhen . Kinetics of CO Substitution of M₂(CO)₁₀(M=Mn,Re) with Py in the Presence of (p-CH₂OC₂H₄)₂TeO[J]. Chem. J. Chinese Universities, 1993, 14(4): 548.

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Kinetics of CO Substitution of M₂(CO)₁₀(M=Mn,Re) with Py in the Presence of (p-CH₂OC₂H₄)₂TeO

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