高氯酸镧与18—冠—6在乙腈溶液中配位反应的量热滴定研究 |
CALORIMETRIC TITRATION FOR COORDINATION REACTION OF LANTHANUM PER CHLORATE WITH 18-CROWN-6 IN ACETONITRILE |
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摘要: 用量热滴定法于298.15K测定了高氯酸镧与18—冠—6在无水乙腈溶液中的配位作用.借助计算机求得了配合物的稳定常数和配位焓,进而算出了配位自由能和配位熵.配位反应为放热反应. |
关键词: 量热滴定法 配位焓 稳定常数 高氯酸镧 18—冠—6 |
基金项目: |
Abstract: The coordination reaction of lanthanum pcrchloratc with 18-crown-6 in acctonitrilc was determined at 298.15K by calorimetric titration. The enthalpy of coordination reaction and stability constant of coordination compound were calculated by using computer. Furthermore, the values of free energy and entropy of coordination reaction were obtained. The result show that the enthalpy change is exothermic. |
Keywords: calorimctric titration enthalpy of coordination reaction stabilitv constant lanthanum perchlorate 18-crown-6 |
投稿时间:1988-11-30 |
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刘德谦,蒋本杲,尹敬执,阎海科.高氯酸镧与18—冠—6在乙腈溶液中配位反应的量热滴定研究[J].无机化学学报,1991,7(3):290-295. |
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