高等学校化学学报
高等學校化學學報
고등학교화학학보
CHEMICAL JOURNAL OF CHINESE UNIVERSITIES
2001年
5期
830-832
,共3页
冯威%张铁锐%刘延%卢然%赵英英%姚建年
馮威%張鐵銳%劉延%盧然%趙英英%姚建年
풍위%장철예%류연%로연%조영영%요건년
12-钨磷酸%聚乙烯吡咯烷酮%光致变色%电荷转移
12-鎢燐痠%聚乙烯吡咯烷酮%光緻變色%電荷轉移
12-오린산%취을희필각완동%광치변색%전하전이
A 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 H+ 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.
