【摘要】 合成了两种稀土高氯酸盐与Ｌ－脯氨酸配合物的晶体．经热重、差热、化学分析及对比有关文献，知其组成 是［Ｐｒ２（Ｌ－Ｐｒｏ）６（Ｈ２Ｏ）４］（ＣｌＯ４）６和［Ｅｒ２（Ｌ－ＰｒＯ）６（Ｈ２Ｏ）４］（ＣｌＯ４）６，质量分数为９９．２４％和９８．２０％．选用ＲＥ（ＮＯ３）· ６Ｈ２Ｏ（ＲＥ＝Ｐｒ，Ｅｒ）、ＬＰｒｏ、ＮａＣｌＯ４·Ｈ２Ｏ和 ＮａＮＯ３作辅助物，使用具有恒温环境的反应热量计，以 ２ ｍｏｌ·Ｌ－１ＨＣｌ 作溶剂，分别测定了［２ＲＥ（ＮＯ３）３·６Ｈ２Ｏ＋６Ｌ－ＰｒＯ＋６ＮａＣｌＯ４·Ｈ２Ｏ］和｛ ［ＲＥ２（Ｌ－ＰｒＯ）６（Ｈ２Ｏ）４］（ＣｌＯ４）６＋６ＮａＮＯ３｝在 ２９８．１５ Ｋ时的溶解热．设计一热化学循环求得化学反应的反应焓ｒＨ分别是：６３．９０４ ｋＪ·ｍｏｌ－１和 ９１．０１７ ｋＪ·ｍｏｌ－１，经计算得配合物［ＲＥ２（Ｌ－Ｐｒｏ）６（Ｈ２Ｏ）４］（ＣｌＯ４）６（ｓ）在 ２９８．１５ Ｋ时的标准生成焓（２９８．１５ Ｋ）分别 是－６ ５９４．７８ ｋＪ·ｍｏｌ－１和－６ ５３２．８７ ｋＪ·ｍｏｌ－１。更多还原

【Abstract】 Crystals of two complex compounds of rare-earth perchlorate with L-proline, [RE2 (L-Pro ) 6(H2 O ) 4] (ClO4) 6(RE = Pr, Er), were synthesized. Their structures were characterized using TG, DTA, chemical analytic method and comparing with literatures, and the purity is determined as 99. 24% and 98. 20% , respectively. For the calculation of chemical reaction heat, solution heat of the [2RE (NO3)3· 6H2 O + 6L-Pro + 6NaClO4 H2Ｏ] and the ｛ [RE2 (L-Pro )６ (H2Ｏ)４] (ClO4 ) + 6NaNO3 ｝ were firstly measured in 2 mol ·L-1 HCl solvent with an isoperibel reaction calorimeter, respectively. The standard enthalpy of formation of the two crystals were calculated by chemi-cal reaction heat and a designed thermochemical cycle at 298. 15 K. The following reaction enthalpy and standard enthalpy of formation were obtained:更多还原