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VO(pa)_2配合物及py上取代基效应的DFT研究

The DFT Study of VO(pa)_2 Complex and Substituent Effect on py
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摘要 对配合物VO(pa)2及其取代衍生物VO(5-I-pa)2、VO(5-Cl-pa)2、VO(5-Me-pa)2、VO(5-NH2-pa)2、VO(6-Cl-pa)2、VO(6-I-pa)2和VO(6-NH2-pa)2进行了DFT计算。由计算结果得出,取代基的不同(即使是同一取代基在不同位置)对配合物的配位键长、产生基谱带所需的能量、轨道布居等都不同程度的有一定的影响,但影响并不很大。计算结果能够解释一些实验现象,在一定程度上能预言配合物的稳定性,能为钒配合物的合成提供一定的理论依据。 The complex VO (pa) 2 and its substituted derivatives VO ( 5 -I -pa) 2, VO ( 5 -Cl-pa) 2 - VO (5-Me-pa) 2, VO ( 5-NH2 -pa) 2 ,VO (6-Cl-pa) 2 ,VO (6-I-pa) 2 and VO ( 6-NH2-pa) 2 were carded out with methods based on the density functional theory. The results show that different substituents (even same substituent in different positions ) have different effects on coordination bond lengths, required energy for band production and orbital populations, etc. However, the impact is not too much. This calculation can fairly explain some experiments results, predict the stability of the complexes to some extent, and provide theory idea to the synthesis of Vanadium Complexes.
出处 《贵州大学学报(自然科学版)》 2009年第1期5-9,共5页 Journal of Guizhou University:Natural Sciences
关键词 VO(pa)2配合物 取代基 密度泛函理论 VO (pa) 2 complex substituent density functional theory
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