摘要
采用量热法在２９８１５±０１０Ｋ测量了ＲＥＢｒ３·３Ｇｌｙ·３Ｈ２Ｏ（ＲＥ＝Ｌａ、Ｃｅ、Ｐｒ、Ｎｄ、Ｓｍ、Ｅｕ、Ｇｄ、Ｔｂ、Ｄｙ、Ｙ；Ｇｌｙ为甘氨酸）和甘氨酸在水中的积分溶解热，及ＲＥＢｒ３·ｎＨ２Ｏ（ＲＥ＝Ｌａ、Ｃｅ、Ｐｒ时，ｎ＝７；ＲＥ＝Ｎｄ、Ｓｍ、Ｅｕ、Ｇｄ、Ｔｂ、Ｄｙ、Ｙ时，ｎ＝６）在甘氨酸水溶液中的积分溶解热。用本研究设计的热化学循环求得上述１０种ＲＥＢｒ３·３Ｇｌｙ·３Ｈ２Ｏ配合物的标准摩尔生成焓，并计算出它们的晶格能。
The integral heats of solution of REBr ·3Gly·3H 2O(RE=La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Y; Gly is glycine) in water, REBr 3· n H 2O(RE=La, Ce, Pr, n =7; RE=Nd, Sm, Eu, Gd, Tb, Dy, Y, n =6) in aqueous glycine solution and glycine in water were measured calorimetrically at 298 15±0 10 K. By means of a thermochemical cycle suggested in this paper, the standard molar enthalpies of formation of REBr 3·3Gly·3H 2O were obtained and their lattice energies were calculated.
出处
《中国稀土学报》
CAS
CSCD
北大核心
1998年第3期213-217,共5页
Journal of the Chinese Society of Rare Earths
关键词
稀土溴化物
甘氨酸
生成焓
配合物
Rare earths, Rare earths bromides, Glycine, Enthalpies of formation
