节点文献
组氨酸与稀土硝酸盐配合物行为的研究
STUDY ON COORDINATION BEHAVIOUR OF HISTIDINE WITH RARE EARTH NITRATE
【Author】 Ji Mian Liu Jianrui Hu Maixia Ren Dehou Gao Shengli (Department of Chemistry,Northwest UniVersity,Xi’an,710069)
【机构】 西北大学化学系;
【摘要】 用半微量相平衡法研究了RE(NO3)3-His-H2O(RE=Sm,Gd,Er)在25℃及全浓度范围内的溶度性质.结果表明每个体系中分别形成两种配合物:RE(His) (NO3)3·H2O和RE(His)3(NO3)3·2H2O。在相平衡结果指导下,合成了文献中未见报道的RE(His)(NO3)3·H2O(RE=La~Nd,Sm~Lu,Y)。IR分析结果表明稀土氨酸配合物中的配体通过羧基氧原子与稀土离子配位。
【Abstract】 The solubility properties of RE(NO3)3-His-H2O System(RE=Sm,Gd,Er) at 25℃in the whole cocentration range have been systematically investigated by semimicro phase equilibrium method.The results indicated that there arc 2 complexes formed in sys- tems:RE(His)(NO3)3·H2O and RE(His)3(NO3)3·2H2O.under the direction of phase e- quilibrium results,15 solid complexes,RE(His) (NO3)3·H2O (RE=La~Nd,Sm~Lu,Y), were synthesized.The complexes have not been repotred yet.The results of IR spectro in- dicated that in these complexes of rare earth,the ligand L-Histidine connects the RE3+ions through the oxygen atoms of carboxyl groups.
- 【会议录名称】 第九届全国相图学术会议论文集
- 【会议名称】第九届全国相图学术会议
- 【会议时间】1997-10
- 【会议地点】中国北京
- 【分类号】O621.1
- 【主办单位】中国物理学会相图专业委员会