| 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 |
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| 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(5): 518-523. DOI: 10.3866/PKU.WHXB19910502 |
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| 作者姓名： | 孟庆金 孙守恒 朱丹红 陈卫兵 P.H.Rieger |
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| 作者单位： | Coordination Chemistry Institute, Nanjing University, Nanjing 210008; Chemistry Department, Brown University, Providence, RI 02912 |
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| 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 |
| 收稿时间： | 1990-03-27 |
| 修稿时间： | 1990-11-06 |
Chemical Exchange of Ligand PR″3 of (RC2R)Co(CO)(PR″3)2 IN SOLUTION——TRIPLE-JUMP KINETIC MODEL |
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| Meng Qing-Jin,Sun Shou-Heng,Zhu Dan-Hong,Chen Wei-Bing,P.H.Rieger. 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(5): 518-523. DOI: 10.3866/PKU.WHXB19910502 |
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| Authors: | Meng Qing-Jin Sun Shou-Heng Zhu Dan-Hong Chen Wei-Bing P.H.Rieger |
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| Affiliation: | Coordination Chemistry Institute, Nanjing University, Nanjing 210008; Chemistry Department, Brown University, Providence, RI 02912 |
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| 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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| Keywords: | Cobalt complex Ligand exchange Tripe-jump model |
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