ICCAS OpenIR
Preparation and photochromic properties of Keggin type tungstophosphate acids based on polyvinyl pyrrolidone
Feng, W; Zhang, TR; Liu, Y; Lu, R; Zhao, YY; Yao, JN
2001-05-01
Source PublicationCHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
ISSN0251-0790
Volume22Issue:5Pages:830-832
AbstractA new 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 N atoms in the polymeric molecules and Hf of the acids. The UV-Vis spectra showed that this type of system had an excellent photochromic behavior. The g values of ESR spectra 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 UV light and the result in the oxidation of the cation and the reduction of the anion.
Keyword12-tungstophosphate Polyvinyl Pyrrolidone Photochromism Charge-transfer
Indexed BySCI
Language英语
WOS IDWOS:000168930400031
PublisherHIGHER EDUCATION PRESS
Citation statistics
Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/77518
Collection中国科学院化学研究所
Corresponding AuthorZhao, YY
Affiliation1.Jilin Univ, Dept Chem, Changchun 130023, Peoples R China
2.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Feng, W,Zhang, TR,Liu, Y,et al. Preparation and photochromic properties of Keggin type tungstophosphate acids based on polyvinyl pyrrolidone[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2001,22(5):830-832.
APA Feng, W,Zhang, TR,Liu, Y,Lu, R,Zhao, YY,&Yao, JN.(2001).Preparation and photochromic properties of Keggin type tungstophosphate acids based on polyvinyl pyrrolidone.CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,22(5),830-832.
MLA Feng, W,et al."Preparation and photochromic properties of Keggin type tungstophosphate acids based on polyvinyl pyrrolidone".CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE 22.5(2001):830-832.
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