摘要
合成了 2个Keggin结构混合多阴离子的喹啉电荷转移配合物 .经元素分析和热重分析 ,确定了其元素构成和配合物的分子组成 .并对其进行了IR ,UV ,DRUV Vis,XPS和ESR表征 .结果表明 ,在受体多酸和给体喹啉之间存在较强的相互作用并发生了电子转移 ,(C9H7N) 4 H3 PMo6W6O40 ·9H2 O中Mo+ 6为电子受体并被部分还原为Mo+ 5,而 (C9H7N) 5 5H5PMo1 0V2 O40 ·5 5H2 O·CH3 CN中V+ 5为电子受体并被部分还原为V+ 4 。
Two charge transfer heteropoly complexes, (C 9H 7N) 4H 3PMo 6W 6O 40 ·9H 2O(abbreviated PMo 6W 6 KL)and (C 9H 7N) 5 5 H 5PMo 10 V 2O 40 ·5 5H 2O·CH 3CN(abbreviated PMo 10 V 2 KL) have been prepared in aqueous solution from the electronic donor of quinoline and the electronic acceptor of molybdenum or vanadium substituted polyoxotungstates with Keggin structure, and characterized by elemental analysis, ICP, TGA, IR, UV, diffusion reflectance electronic spectra, XPS and ESR. The results show that the stronger interactions and charge transfer existing between donor and acceptor; meanwhile, V +5 and Mo +6 were deoxided to V +4 and Mo +5 , respectively. The Keggin structure of the heteropoly anions was retained in charge transfer heteropoly complexes, but the characteristic vibrational bands have some red or blue shift.
出处
《东南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2003年第6期820-824,共5页
Journal of Southeast University：Natural Science Edition
关键词
杂多酸
喹啉
电荷转移配合物
heteropoly acids
quinoline
charge transfer complexes
