VO-TPP,VO-TCIPP和VO-TpyPP氧化还原特性的循环伏安法研究  

STUDIES ON OXIDATION REDUCTION BEHAVIOR OF PORPHYRIN VANADIUM OXIDE COMPLEXES VO-TPP, VO-TC1PP and VO-TPyPP by Cyclic Voltammetry

作　　者：沈致隆[1] 孙宇梅[1] 吴爱萍[1] 何明威[2] 

机构地区：[1]北京工商大学化学与环境工程学院,北京100037 [2]山西大学化学系,山西太原030006

出　　处：《北京工商大学学报（自然科学版）》2003年第3期1-3,9,共4页Journal of Beijing Technology and Business University:Natural Science Edition

摘　　要：用循环伏安法研究了VO-TPP,VO-TClPP和VO-TpyPP的氧化还原特性。结果表明:这3种钒氧卟啉化合物的氧化还原过程存在准可逆性,VO-TClPP中钒氧中心离子的还原半波电位为—0.781 V,卟啉环的还原电位为—1.141 V。结果还表明:推电子基团有利于中心离子的稳定。The Oxidation-reduction Characterization of tetrabenzoporphyrin vanadium oxide (VO-TPP), p-tetrachloroporphyrin vanadium oxide (VO-TC1PP) and tetrapyridylporphyrin (VO-TPyPP) were investigated by cyclic voltammetry in dimethylsuoxide(DMSO). The results prove that the oxidation-reduction processes of above porphyrins are quasi-reversible. The half wave potential of [VO-TC1PP]/[VO-TC1PP]4- is -0.781 V and that of [VO-TC1PP]4-/[VO-TC1PP]5- is - 1. 141 V. The repulsive electron radical groups are beneficial to the stability of central ions of porphyrin comlexes.

关 键 词：VO—TPP VO—TClPP VO—TpyPP 氧化还原特性 循环伏安法 钒氧卟啉化合物 半波电位 

分 类 号：O614.511[理学—无机化学] O646.54[理学—化学]