无机化学学报

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	单位
冯海霞	南开大学化学系，天津 300071
朱志昂	南开大学化学系，天津 300071
阮文娟	南开大学化学系，天津 300071
王传忠	南开大学化学系，天津 300071
严诗楷	南开大学化学系，天津 300071
刘钦宣	南开大学化学系，天津 300071
陈荣悌	南开大学化学系，天津 300071

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Δ_rH^?_m, Δ_rS^?_m。探讨了温度对反

关键词: 2，9，16，23-四羧基酞菁钴(Ⅱ) 硫醇硫酚热力学

基金项目:

Abstract: 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_rH^?_m and standard molar entropies Δ_rS^?_m of reaction were obtained from the plots of lnK^?_a vs 1/T. The influence of temperature was discussed.

Keywords: Co(Ⅱ)-phthalocyanine thiol axial coordination reaction thermodynamic

摘要点击次数: 1660

全文下载次数: 1742

冯海霞,朱志昂,阮文娟,王传忠,严诗楷,刘钦宣,陈荣悌.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[J].无机化学学报,1999,15(6):732-738.

查看全文查看/发表评论下载PDF阅读器

Support information: