高等学校化学学报

高等学校化学学报 ›› 2001, Vol. 22 ›› Issue (5): 830.

• 研究论文 • 上一篇    下一篇

Keggin结构钨磷酸/聚乙烯吡咯烷酮复合膜的制备和光致变色性质研究

冯威1, 张铁锐1, 刘延1, 卢然1, 赵英英1, 姚建年2   

  1. 1. 吉林大学化学系, 长春 130023;
    2. 中国科学院化学研究所分子科学中心, 北京 100080
  • 收稿日期:2000-12-05 出版日期:2001-05-24 发布日期:2001-05-24
  • 通讯作者: 赵英英(1938年出生),女,教授,博士生导师,从事有机化学研究.E-mail:zhyy@mai.ljlu.edu.cn E-mail:zhyy@mai.ljlu.edu.cn
  • 基金资助:

    国家自然科学基金(批准号:59932040)资助

Preparation and Photochromic Properties of Keggin Type Tungstophosphate Acids Based on Polyvinyl Pyrrolidone

FENG Wei1, ZHANG Tie-Rui1, LIU Yan1, LU Ran1, ZHAO Ying-Ying1, Yao-Jian-Nian2   

  1. 1. Department of Chemistry, Jilin University, Changchun 130023, China;
    2. Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China
  • Received:2000-12-05 Online:2001-05-24 Published:2001-05-24

PDF (PC)

被引次数

40

关键词: 12-钨磷酸, 聚乙烯吡咯烷酮, 光致变色, 电荷转移

Abstract: Anew photochromic complex of Keggin type tungstophosphate acid/polyvinyl pyrrolidone system was prepared, and its thin films was made by the dipping method. Their photochromic properties were investigated by FTIR, UV-Vis spectra. The salts were formed by the combination of the ion based on the Natoms in the polymeric molecules and H+ of the acids. The UV-Vis spectra showed that this type of system had an excellent photochromic behavior. The g values of ESRspectra for the one electron blues were the characteristic of tetragonal W(Ⅴ) complex in colored thin film. It was indicated that the charge could be transferred between the anion and cation under irradiation of UVlight and the result in the oxidation of the cation and the reduction of the anion.

Key words: 12-Tungstophosphate, Polyvinyl pyrrolidone, Photochromism, Charge transfer

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