Synthesis and Thermochemical Study of Ternary Complexes of [Er(Gly)4(Im)(H2O)](ClO4)3 Zhao Yanru1,3, Song Li 2,3, Liu Yi 3*, Qu Songsheng 3 (1 Department of Chemistry, Xuchang College, Xuchang, Henan 461000；2Department of Chemistry and Chemical Engineering , Xinyang Teachers College, Xinyang, Henan 464000； 3 College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072) Abstract The coordination compounds [Er(Gly)4(Im)(H2O)](ClO4)3 from erbium-perchlorates, glycine and imidazole have been synthesized. The complex was characterized by chemical analysis, elemental analysis, TG, FT-IR, and compared with relatied literature. The standard molar enthalpies of reaction for the following reactions were determined by solution-reaction calorimetry: ErCl3 × 6H2O (s) + 4Gly (s) + Im (s) + 3NaClO4 (s) ＝ [Er(Gly)4(Im) (H2O)](ClO4)3 (s) + 3NaCl (s) + 5H2O(l) From the results and other auxiliary quantities, the standard molar enthalpies of formation of [Er(Gly)4(Im)(H2O)](ClO4)3(s) were derived, {[Er(Gly)4(Im)(H2O)](ClO4)3, s}=－3481.6±1.0 kJ/mol. Key words Solution-reaction calorimetry, Standard enthalpy of formation, Erbium -perchlorates , Glycine, Imidazole 三元配合物[Er(Gly)4(Im)(H2O)](ClO4)3的合成及热化学研究 赵艳茹1,3 宋 力2,3 刘 义3* 屈松生3 (1许昌学院 河南许昌 461000 2信阳师范学院 河南信阳 464000 3 武汉大学化学与分子科学学院 武汉 430072) 摘要 合成了高氯酸铒甘氨酸咪唑三元配合物晶体[Er(Gly)4(Im)(H2O)](ClO4)3，经热重分析、红外分析、化学分析、元素分析及与有关文献比对，确认其组成。用溶解-反应量热法，测定了以下反应标准摩尔反应焓: ErCl3 × 6H2O (s) + 4 Gly (s) + Im (s) + 3NaClO4 (s) ＝[Er(Gly)4(Im)(H2O)](ClO4)3 (s) + 3NaCl (s) + 5H2O(l) 由此结果和其它数据，推算出配合物[Er(Gly)4(Im)(H2O)](ClO4)3的标准摩尔生成焓为－3481.6±1.0kJ/mol。 关键词 溶解-反应量热法 标准摩尔生成焓 高氯酸铒 甘氨酸 咪唑 赵艳茹 女，49岁，副教授，现主要从事物理化学教学与热分析和热化学研究工作。*联系人, E-mail: xcyrz58@tom.com 国家自然科学基金资助项目(30170010) 2003-10-25收稿，2004-04-29接受 (PDF全文下载c04113)