基于丙氨酸衍生物的2种Cu(Ⅱ)手性配合物的合成、晶体结构及电化学性质  

Syntheses,Crystal Structures and Electrochemical Properties of Two Cu(Ⅱ)Chiral Complexes Based on Alanine Derivatives

作　　者：李宏利 曹梦茹 姜国远 邓凯萌 宋会花[1] LI Hongli;CAO Mengru;JIANG Guoyuan;DENG Kaimeng;SONG Huihua(College of Chemistry and Materials Science,Hebei Normal University,Shijiazhuang 050024,China)

机构地区：[1]河北师范大学化学与材料科学学院,石家庄050024

出　　处：《河北师范大学学报(自然科学版)》2025年第2期143-151,共9页Journal of Hebei Normal University:Natural Science

基　　金：河北省自然科学基金(B2018205152);河北省引进留学人员资助项目(CL201715);河北师范大学自然科学基金(L2021Z03)。

摘　　要：以N-(4-羧基)苯甲酰基-D-丙氨酸(D-H2pmala)为主配体,合成了2种Cu(Ⅱ)手性配合物[Cu2(Dpmala)2(5,5'-DM-2,2'-bipy)_(2)(H_(2)O)]_(n)(1)(DM=二甲基,bipy=联吡啶)和{[Cu_(2)(D-pmala)_(2)(bpp)_(4)]·H_(2)O}_(n)(2)(bpp=1,3-双(4-吡啶基)丙烷),并对其进行了元素分析(EA)、红外光谱(IR)、粉末X射线衍射(PXRD)、热重分析(TG)、圆二色光谱(CD)及单晶X射线衍射(SXRD)表征.结果表明:配合物1为单斜晶系,P21_(手)性空间群,呈一维右手螺旋链结构;配合物2为三斜晶系,P1手性空间群,呈一维双链结构;2者均在氢键作用下拓展为三维超分子结构,不同的含氮辅助配体对配合物的结构有重要影响;2种配合物均表现出良好的电化学氧化还原行为.By using N-(4-carboxyl)benzoyl-D-alanine(D-H_(2) pmala)as main ligand,two Cu(Ⅱ)chiral complexes,[Cu_(2)(D-pmala)_(2)(5,5'-DM-2,2'-bipy)_(2)(H_(2)O)]_(n)(1)(DM=dimethyl,bipy=bipyridine)and{[Cu_(2)(D-pmala)_(2)(bpp)_(4)]·H_(2)O}_(n)(2)(bpp=1,3-bis(4-pyridyl)propane)were synthesized.The two complexes were characterized by elemental analysis(EA),infrared spectroscopy(IR),powder X-ray diffraction(PXRD),thermogravimetric analysis(TG),circular dichroism spectra(CD)and single crystal X-ray diffraction(SXRD).The results showed that complex 1 crystallized in monoclinic crystal system with P2i chiral space group and displayed a one-dimensional right-hand spiral chain structure.Complex 2 crystallized in triclinic crystal system with P1 chiral space group and showed a one-dimensional double-chain structure.Both complexes are further expanded into three-dimensional supramolecular structures by the hydrogen bonding.The structural analyses indicates that different N-containing ancillary ligands have a subtle effect on the final structure.Both complexes exhibit good electrochemical redox behavior.

关 键 词：N-(4-羧基)苯甲酰基-D-丙氨酸 手性配合物 晶体结构 电化学性质 

分 类 号：O641.4[理学—物理化学]