| [Mo6O17(NAr)2]2-的光谱与[Mo6O19]2-类芳香性的研究 |
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| 引用本文： | 夏芸,魏永革,郭洪猷. [Mo6O17(NAr)2]2-的光谱与[Mo6O19]2-类芳香性的研究[J]. 北京化工大学学报(自然科学版), 2006, 33(3): 94-97 |
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| 作者姓名： | 夏芸 魏永革 郭洪猷 |
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| 作者单位： | 1. 北京化工大学理学院，北京，100029；2. 北京清华大学化学系，北京，100084 |
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| 摘 要： | 本文研究分析了六钼酸盐的2,6–二甲基苯胺的邻、对位二取代衍生物的UV/Vis、1H-NMR和UV-Vis-NIR反射光谱。比较二者的光谱特征得出六钼酸盐的对位二取代衍生物中存在更大的π共轭离域体系。结合量子化学π共轭离域体系的计算结果成功地解释了二者的光谱特征的差别，从而在实验上证实这类前过渡金属的同多酸阴离子[M6O19]n-(M=Mo和 W, n=2; M=V和Nb, n=8）中存在类芳香性。
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| 关 键 词： | 六钼酸盐 二取代衍生物 类芳香性 光谱 六钼酸盐 二取代衍生物 类芳香性 光谱 |
| 收稿时间： | 2005-09-12 |
| 修稿时间： | 2005-09-12 |
Spectroscopic studies of [ Mo6O17 (Nar) 2 ]2 - and evidence for quasi-aromaticity in [ Mo6O19 ] 2 - |
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| XIA Yun,WEI Yong-ge,GUO Hong-you. Spectroscopic studies of [ Mo6O17 (Nar) 2 ]2 - and evidence for quasi-aromaticity in [ Mo6O19 ] 2 -[J]. Journal of Beijing University of Chemical Technology, 2006, 33(3): 94-97 |
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| Authors: | XIA Yun WEI Yong-ge GUO Hong-you |
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| Affiliation: | 1. College of Sciece, Beijing University of Chemical Technology, Beijing 100029;2. Department of Chemistry, Tsinghua University, Beijing 100084, China |
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| Abstract: | It has been concluded that there is a larger conjugated system in trans-bifunctionalized organoimido derivative of hexamolybdate than that in cis-bifunctionalized derivative by comparing their spectra of UV/Vis, 1H-NMR and UV-Vis-NIR. Calculation results of quantum chemistry in π conjugated system were used to successfully explain differences in spectra between them, which confirms from experiments that there is quasi-aromaticity in [Mo6O19]2- and similar cluster anions [M6O19]n- (M= W, n=2; M=V, Nb, n=8). |
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| Keywords: | hexamolybdate bifunctionalized derivatives quasi-aromaticity spectra |
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