桑色素合钴（Ⅱ）配合体系的热力学性质

桑色素合钴（Ⅱ）配合体系的热力学性质 Thermodynamic Properties of the Morin Cobalt（Ⅱ） Complex System 秦淑琪 QIN Shu-qi 1 first-author 西北师范大学化学化工学院,甘肃,兰州,730070 西北师范大学化学化工学院,甘肃,兰州,730070 College of Chemistry and Chemical Engineering,Northwest Normal University College of Chemistry and Chemical Engineering,Northwest Normal University 用分光光度法研究了桑色素合钴（Ⅱ）配合体系的热力学性质.Co（Ⅱ）使桑色素380 nm（pH 5.3）处的吸收峰红移至400 nm附近,且吸光度增大.其热力学性质测定显示,在25 5 0℃范围内,Co（Ⅱ）与桑色素可以生成配合比为1∶2的稳定二元配合物;该配合反应为放热反应.基于此,建立了用分光光度法研究配合物热力学性质的方法.该反应体系简单,反应条件容易实现,适于大规模合成应用. Thermodynamics properties of Morin cobalt（Ⅱ） complex system have been investigated by spectrophotometry.Addition of Co（Ⅱ） made the absorbance of Morin increase,and absorption peak of Morin shift from 380 nm（pH 5.3） to 400 nm.The thermodyoamics properties indicated that complex of duality of Co（Ⅱ） with Morin can be steadily formed and the coordinate ratio of Co（Ⅱ） and Morin is determined to be 1∶2 in 25-（50℃;） the coordinate reaction is exothermic.Based on this,a new method has been established by spectrophotometry to study thermodynamics properties of complex.The thermodynamics data can be supplied for producing the complex cosmically. 热力学性质 配合物 桑色素 钴离子 分光光度法 thermodynamic properties complex Morin Co（Ⅱ） ion spectrophotometry O641.4 甘肃省自然科学基金资助项目（3ZS051-A25-002） 2005-06-01 2021-04-01 6