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A theoretical study of interaction between dinitrogen and single transition-metal centers Mo, Fe and V

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纯锌电极上的表面增强拉曼光谱研究.pdf (276.9Kb)
Date
2005
Author
GU Ren-Ao
顾仁敖
SHEN Xiao-Ying
沈晓英
LIU Guo-Kun
刘国坤
TIAN Zhong-Qun
田中群
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  • 化学化工-已发表论文 [14469]
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Abstract
Complexes of the transition metal-containing model compounds with dinitrogen (N-2)M(NH2)(3)(NH3) and (N-2)M(SH)(3)(NH3)(-OCH2COO-) [M=Mo,V, Fe] were studied by the density functional theory. The relative energetics of the reduction of N2 to ammonia by the proton-electron transfer to the dinitrogen derivative was predicted. The calculated results show that there is a strong interaction between the Mo center and dinitrogen and the V center dot center dot center dot NN interaction is relatively weak, whereas the Fe center cannot bind N-2. The homocitrate ring opening in the simplified Mo-containing fragment in the FeMoco was predicted to be manipulable by controlling the spin multiplicity and oxidation state of the transition metal complex. The present results from both models indicate that the Mo is the most efficient active site for the dinitrogen binding and reduction among the single transition-metal centers Mo, V and Fe.
Citation
CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2005,26(8):1522-1526
URI
https://dspace.xmu.edu.cn/handle/2288/11152

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