2,9,16,23-四羧基酞菁钴(Ⅱ)与硫醇、硫酚配位反应的热力学研究  

THERMODYNAMIC STUDIES ON THE AXIAL COORDINATION REACTION OF Co-2,9,16,23-TETRACABOXYPHTHALOCYANINE WITH 2-MERCAPTOETHANOL AND THIOPHENOL

作　　者：冯海霞[1] 朱志昂[1] 阮文娟[1] 王传忠[1] 严诗楷[1] 刘钦宣[1] 陈荣悌[1] 

机构地区：[1]南开大学化学系,天津300071

出　　处：《无机化学学报》1999年第6期732-738,共7页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金;天津市自然科学基金

摘　　要：我们研究了２，９，１６，２３－四羧基酞菁钴（Ⅱ）与硫醇（２－巯基乙醇）、硫酚（苯硫酚）轴向配位反应的热力学性质，发现了配位过程中中心离子钴由二价变为一价的现象。用紫外－可见分光光度法和Ｍｉｌｌｅｒ－Ｄｏｒｏｕｇｈ 数据处理方法，确定了体系的配位数和平衡常数；利用温度系数法求得了体系的ΔｒＨｍ ， ΔｒＳｍ 。the thermodynamics of axial coordination reaction of Co(Ⅱ) 2,9,16,23 tetracaboxyph thalocyanine with 2 mercaptoethanol in aqueous and with thiophenol in DMSO were studied. It was found that the centre metal ion Co(Ⅱ) was reduced to Co(Ⅰ). Coordination number and equilibrium constants of axial coordination reaction were measured by visible spectra techniques and the method of Miller Dorough. The changes of standard molar enthalpies Δ r H  m and standard molar entropies Δ r S  m of reaction were obtained from the plots of ln K  a vs 1/ T . The influence of temperature was discussed.

关 键 词：轴向配位反应 配位反应 四羧基酞菁钴 

分 类 号：O614.812[理学—无机化学] O628.81[理学—化学]