Synthesis and Spectroscopic Characterizations of an Insulinomimetic Peroxovanadate Complex in Aqueous Solution  

作　　者：蔡淑惠 于贤勇 陈忠 万惠霖 

机构地区：[1]Department of Physics, State Key Laboratory for Physical Chemistry of Solid Surface,Xiamen University,Xiamen,Fujian 361005, China [2]Department of Chemistry, State Key Laboratory for Physical Chemistry of Solid Surface,Xiamen University, Xiamen,Fujian 361005, China [3]Department,of Physics,State Key Laboratory for Physical Chemistry of Solid Surface,Xiamen University,Xiamen,Fujian 361005,China

出　　处：《Chinese Journal of Chemistry》2003年第7期746-750,共5页中国化学（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Nos.Grants 10234070,10104011)and the Naturral Science Foundation of Fujian Province(No.Grant E0110003).

摘　　要：The reaction system of diperoxooxalatovanadate {K3[VO(O2)2-(C2O4)]·H2O, bpV(Oxa)} and imidazole was studied in an aqueous solution by 1D multinuclear (1H, 13C and 51V) NMR, 2D NMR diffusion ordered spectroscopy (DOSY), and variable temperature NMR techniques. It was shown that DOSY was a useful tool for the study of a mixture. All of the 1H and 13C NMR signals of the peroxovanadate (V) complexes were assigned. The NMR experimental results indicated that a new complex was formed through the coordination interactions between bpV(Oxa) and imidazole. The newly-formed complex is stable under the experimental condition. Electrospray ioniza-tion mass spectrometry (ESI-MS) provides positive evidence to support the conclusion.The reaction system of diperoxooxalatovanadate {K3[VO(O2)2-(C2O4)]·H2O, bpV(Oxa)} and imidazole was studied in an aqueous solution by 1D multinuclear (1H, 13C and 51V) NMR, 2D NMR diffusion ordered spectroscopy (DOSY), and variable temperature NMR techniques. It was shown that DOSY was a useful tool for the study of a mixture. All of the 1H and 13C NMR signals of the peroxovanadate (V) complexes were assigned. The NMR experimental results indicated that a new complex was formed through the coordination interactions between bpV(Oxa) and imidazole. The newly-formed complex is stable under the experimental condition. Electrospray ioniza-tion mass spectrometry (ESI-MS) provides positive evidence to support the conclusion.

关 键 词：diperoxovanadate IMIDAZOLE SYNTHESIS DOSY NMR ESI-MS 

分 类 号：O657.3[理学—分析化学]