四羧基金属酞菁配合物电子吸收光谱研究  

Electronic absorption spectra of tetracarboxylic metal phthalocyanines

作　　者：贺春英[1] 宋微娜[1] 历荣[1] 陈鹏刚[1] 毛桂洁[1] 吴谊群[1] 段武彪[1] 宋瑛林[2] 

机构地区：[1]黑龙江大学化学化工与材料学院,黑龙江哈尔滨150080 [2]哈尔滨工业大学,黑龙江哈尔滨150010

出　　处：《哈尔滨商业大学学报（自然科学版）》2006年第3期69-72,共4页Journal of Harbin University of Commerce：Natural Sciences Edition

基　　金：黑龙江省自然科学基金资助(B2004-05);黑龙江省教育厅科技项目资助(10541170)

摘　　要：合成了系列四羧基金属酞菁配合物,研究了中心金属的电子层结构、取代基效应以及溶剂的极性对于配合物电子吸收光谱最大吸收峰波长λmax的影响.研究结果表明,若中心金属为不满d壳层结构,则随着金属的电负性增大原子半径的减小λmax逐渐增大,当d壳层结构添满电子后,则随着金属的电负性增大原子半径的减小λmax逐渐减小.酞菁的周边位置被羧基取代后,羧基与酞菁大环共轭,增大了π电子的共轭体系,λmax红移.随着溶剂的极性的增大,其Q带最大吸收峰波长λmax红移.A series of tetracarboxylic metal phthalocyanines are synthesized and their electronic absorption spectra are investigated. There are several factors influence the maximum absorption wavelength λmax of Q band： the electronic structure of central metal atom; peripheral substituents; polarity of the solvent in which it dissolves. The results depict that if the d - shell of the metal atom is not full, λmax value increases directly with eletronagativity of the central atom and change inversely with the atomic radius; if the d - shell of the metal atom is full the results are inversed compared with λmax value of the former. The λmax value of Q - band shifts to the red owing to the carboxyl groups on the phthaloeyanine ring. Moreover, the λmax value of the compounds closely depends on polarity of the solvent, in the result that the λmax value of the compounds gradually moves to the red with the increasing of the polarity of solvent.

关 键 词：酞菁 电子吸收光谱 共轭体系 

分 类 号：O624.11[理学—有机化学]