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Citation: Meng Qing-Jin, Sun Shou-Heng, Zhu Dan-Hong, Chen Wei-Bing, . Chemical Exchange of Ligand PR″₃ of (RC₂R)Co(CO)(PR″₃)₂ IN SOLUTION——TRIPLE-JUMP KINETIC MODEL[J]. Acta Physico-Chimica Sinica, ;1991, 7(05): 518-523. doi: 10.3866/PKU.WHXB19910502 shu

Chemical Exchange of Ligand PR″₃ of (RC₂R)Co(CO)(PR″₃)₂ IN SOLUTION——TRIPLE-JUMP KINETIC MODEL

1.
Coordination Chemistry Institute, Nanjing University, Nanjing 210008; Chemistry Department, Brown University, Providence, RI 02912

Received Date: 27 March 1990
Available Online: 15 October 1991

This paper described a detailed theoretical analysis of ESR spectrum line width of the cobalt complex (RC_2R/)Co(CO)(PR"_3)_2 in solution. Triple-jump kinetic model was first used in the Trans-Cis isomerism of the complex.A formula concerning ESR line width as a function of the basic line width T_(20)~(-1), hyperfine splitting constants of all isomers in solution, and lifetime of the exchange of ligand PR"_3 were suggested on the relationship between the correlation function and the hyperfine splitting constant. The calculated, exchange lifetime of the ligand P(OEt)_3 in the title complex (Ph_2C_2)Co(CO)[P(OEt)_3]_2 at 290 K is 5.6×10~(-11) s.
- Cobalt complex; Ligand exchange; Tripe-jump model
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Chemical Exchange of Ligand PR″3 of (RC2R)Co(CO)(PR″3)2 IN SOLUTION——TRIPLE-JUMP KINETIC MODEL

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通讯作者: 陈斌, bchen63@163.com

Chemical Exchange of Ligand PR″₃ of (RC₂R)Co(CO)(PR″₃)₂ IN SOLUTION——TRIPLE-JUMP KINETIC MODEL