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三元杂多酸-甲基紫超分子化合物的合成及光谱研究
引用本文:吴小园,张汉辉,黄长沧,孙瑞卿,杨齐瑜,林志华,陈犹星. 三元杂多酸-甲基紫超分子化合物的合成及光谱研究[J]. 光谱学与光谱分析, 2004, 24(5): 565-568
作者姓名:吴小园  张汉辉  黄长沧  孙瑞卿  杨齐瑜  林志华  陈犹星
作者单位:福州大学化学系,福建,福州,350002;福州大学化学系,福建,福州,350002;中国科学院福建物质结构研究所结构化学国家重点实验室,福建,福州,350002
基金项目:福建省自然科学基金(E0110013)、福建省科技三项基金(K02028)和结构化学国家重点实验室基金资助项目
摘    要:在水溶液条件下合成了一系列具有Keggin结构的PWxV12 -x MV(x =2 ,4 ,6 ,8,10 )超分子化合物 (PWxV12 -x为具有不同配比的磷钨矾三元杂多酸 ,MV为甲基紫 ) ,并对其紫外光谱 ,红外光谱和荧光光谱进行了研究。结果表明 ,杂多酸阴离子上的端氧与甲基紫阳离子上的N 间通过配合作用相互连结而形成超分子化合物。超分子化合物中仍保持有杂多阴离子的Keggin结构以及甲基紫的基本结构。且随着V的含量增加 ,杂多阴离子的氧化能力增强 ,阴离子PWxV12 -x和阳离子MV的相互作用增强 ,νas(M =Ot) ,νas(M Ob M )和νas(M Oc M )的FTIR吸收峰分别从 96 6 ,886和 80 4cm-1变化至 95 5 ,875和 786cm-1;紫外吸收峰也从 5 19nm移至 5 0 6nm ;用 5 30nm的光激发的荧光发射峰也从 6 92移至 6 4 4nm ,与PWxV12 -x和MV间配合作用的强弱呈现了很好的对应关系。

关 键 词:Keggin结构  甲基紫  配合作用  氧化能力
文章编号:1000-0593(2004)05-0565-04
修稿时间:2002-11-06

Synthesis and Spectroscopic Studies of Supermolecules of PWxV12-x-MV
Xiao-yuan Wu,Han-hui Zhang,Chang-cang Huang,Rui-qing Sun,Qi-yu Yang,Zhi-hua Lin,You-xing Chen. Synthesis and Spectroscopic Studies of Supermolecules of PWxV12-x-MV[J]. Spectroscopy and Spectral Analysis, 2004, 24(5): 565-568
Authors:Xiao-yuan Wu  Han-hui Zhang  Chang-cang Huang  Rui-qing Sun  Qi-yu Yang  Zhi-hua Lin  You-xing Chen
Affiliation:Department of Chemistry, Fuzhou University, Fuzhou 350002, China.
Abstract:A series of supermolecules of PW(x)V(12 - x)-MV (PW(x)V(12 - x): polyoxometalates x = 2, 4, 6, 8, 10; MV: methyl violet) with Keggin structure were prepared and their characters were studied by electronic spectra, infrared spectra and fluorescence spectra. As a result, the supermolecules were formed by the cooperating action between polyoxometalates and methyl violet. In the supermolecule, the structures of cation and anion are not destroyed. With the content of V increasing, the oxidation ability of polyoxometalates anion is enhanced, and the interaction of methyl violet cation and polyoxometalates anion is enhanced too. The FTIR absorption peaks of nu(as)(M=O(t)), nu(as)(M-O(b)-M) and nu(as)(M-O(c)-M) move from 966, 886, and 804 cm(-1) to 955, 875 and 786 cm(-1), respectively; the UV-Vis absorption peak moves from 519 to 506 nm; the emission peak excited at 530 nm moves from 692 to 644 nm too. These changes are according with the degree of the interaction of polyoxometalates and methyl violet.
Keywords:Keggin structure  Methyl violet  Cooperating  Oxidation ability
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