手性化合物Co(L/D-thr)3·4.5H2O的合成、结构以及圆二色性

摘要

合成了2个基于手性配体L-和D-苏氨酸(L/D-thr)的Co(Ⅲ)配合物的对应异构体[Co(L-thr)3] ·4.5H2O (L-1)和[Co(L-thr)3]·4.5H2O (D-1),并对2个化合物进行了单晶X射线衍射、红外、热重、紫外可见光谱以及CD谱性质研究.晶体结构分析表明,2个化合物分别结晶在四方晶系P43212和P41212手性空间群.固体CD谱测试进一步证实2个化合物具有手性.%A couple of enantiomer [Co(L-thr)3]·4.5H2O (L-1) and [Co(L-thr)3] ·4.5H2O (D-1) consisting the Co(Ⅲ) ion,based on chiral ligand L/D-threonine (L/D-thr),were prepared and characterized by single-crystal X-ray structure analysis,IR,thermogravimetric analysis,solid-state UV-Vis spectra and circular dichroism analysis.Complexes L-1 and D-1 crystalize in tetragonal system P43212 and P41212,respectively.Moreover,the circular dichroism analysis of complexes L-1 and D-1 was measured with chirality,and the CD spectra of the enantiomer show change under the magnetic field inducing.