Synthesis,Crystal Structure and Infrared Spectrum of Lanthanum Dinuclear Coordination Compound with Alanine:〔La<sub>2</sub>(ala)<sub>4</sub>(H<sub>2</sub>O)<sub>8</sub>〕·(ClO<sub>4</sub>)<sub>6</sub>
Synthesis,Crystal Structure and Infrared Spectrum of Lanthanum Dinuclear Coordination Compound with Alanine:[La<sub>2</sub>(ala)<sub>4</sub>(H<sub>2</sub>O)<sub>8</sub>]·(ClO<sub>4</sub>)<sub>6</sub>出 版 物:《Chinese Journal of Structural Chemistry》 (结构化学(英文))
年 卷 期:1995年第6期
页 面:5-10页
核心收录:
学科分类:081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学]
主 题:rare earth amino acid Ianthanum complex crystal structure IR spectrum.
摘 要:Lanthanum coordination compound with l-alanine[La2(ala)4(H2O)8]·(ClO4)6(ala=l-alanine) was synthesized by reaction of lanthanum perchlorate with l-alanine in aqueous solution and obtained in the form of single *** X-ray crystal structure has been determined and the IR spectrum has been *** title compound Cl6La2C12H44O40N4,Mr=1375.2,crystallizes in the triclinic,space group P1 , with parameters: a= 11.227(3),b=11.445(2),c=11.014(3),α=114.46(2),β=114.51(2),γ=78.62(2)°,V=1171.73,Z=1,Dc=1.95 g/cm ̄3,F(000)=680,μ=22.9 cm ̄-1(MoKα).The final R=0.050,Rω=*** the crystal,two lanthanum ions are coordinated by four alanine molecules via four carboxylate bridges to form a dinuclear coordination *** water molecules are coordinated to each lanthanum ion. There is a symmetric centre between the two lanthanum *** IR spectrum of the coordination compound and the relationship between the IR spectrum and the structure have been *** mechanism of the configuration inversion of alanine has been proposed.