四-(三氟乙烷氧基)酞菁锌在非水与水溶剂中的电化学性能  

Electrochemical Performance of Zinc Tetra (Trifluoroethoxy) Phthalocyaninate in Aqueous and Nonaqueous Solvents

作　　者：吴晓珊[1] 黄丽英[1] 张锦雀[1] 朱善岚[1] 

机构地区：[1]福建医科大学药学院,福建福州350004

出　　处：《电化学》2010年第4期460-464,共5页Journal of Electrochemistry

基　　金：福建省自然基金(编号:C0710025);中国科学院福建物质结构研究所结构化学国家重点实验室开放基金课题(编号:07003);福建省科技厅重点项目(编号:2009I0009)资助

摘　　要：分别测定四-(三氟乙烷氧基)酞菁锌(ZnPcF)于非水溶剂N,N-二甲基甲酰胺(DMF)、二甲基亚砜(DMSO)及磷酸盐缓冲溶液(PBS)中玻碳(GC,抛光)电极的循环伏安行为.结果表明,ZnPcF在DMF及DMSO溶剂均呈现4对电流峰,半波电位分别为0.558、-0.761、-1.034和-1.417 V,显示该物存在4个准可逆酞菁配体的单电子转移过程.而在PBS溶液中,ZnPcF乳化液仅呈现两个电流峰,半波电位为-0.885和-1.104 V,为不可逆反应特征,与酞菁锌(ZnPc未取代)相比,由于其周边取代基—三氟乙烷氧基的吸电子作用,导致氧化还原电位正移.The cyclic voltammetric performance of ZnPcF in N,N-dimethylformaide（DMF）,dimethyl sulfoxide（DMSO） solution and phosphate buffer solutions（PBS） has been examined.The results showed that four pairs of redox peaks appeared in nonaqueous solvents,and the values of half-wave redox potential were 0.558 V,-0.761 V,-1.034 V,-1.417 V,respectively,exhibiting four quasi-reversible phthalocyanine ligand based one-electron transfers.In PBS only two redox peaks were observed and the values of half-wave redox potential were-0.885 V,-1.104 V,exhibiting irreversible behavior characteristics.Comparing to the zinc phthalocyanine（unsubstitute ZnPc）,introducing electron-withdrawing groups-trifluoroethoxyl to the peripheral sites of the phthalocyanines shifts the redox processes of the complex toward positive potentials.

关 键 词：四-(三氟乙烷氧基)酞菁锌 电化学 循环伏安法 光敏剂 

分 类 号：O646[理学—物理化学] R979.19[理学—化学]