引用本文:
孟庆金, 孙守恒, 朱丹红, 陈卫兵, P.H.Rieger. 溶液中(RC2R')Co(CO)(PR″3)2的配体PR″3之间的交换作用——三跳动力学模型[J]. 物理化学学报,
1991, 7(05): 518-523.
doi:
10.3866/PKU.WHXB19910502
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
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
溶液中(RC2R')Co(CO)(PR″3)2的配体PR″3之间的交换作用——三跳动力学模型
摘要:
本文成功地运用了三跳动力学模型,通过相关函数和超精细分裂常数的关系, 推出了电子自旋共振波谱的线宽与基本线宽T_(2,0)~(-1)、溶液中各种异构体的超精细分裂常数、配体的交换寿命等之间的关系。求出了在290 K温度下(Ph_2C_2)Co(CO)[P(OEt)_3]_2的THF溶渡中P(OEt)_3配体的交换寿命是5.6×10~(-11)秒。
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关键词:
- 钴配合物; 配体交换; 三跳模型
English
Chemical Exchange of Ligand PR″3 of (RC2R)Co(CO)(PR″3)2 IN SOLUTION——TRIPLE-JUMP KINETIC MODEL
Abstract:
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.
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