5-甲基-3-吡唑甲酸构筑的两个锰(Ⅱ)/镍(Ⅱ)配合物的合成、结构、电化学及荧光性质  

Mn(Ⅱ)/Ni(Ⅱ)Complexes Based on 5-Methyl-1H-pyrazole-3-carboxylic Acid:Syntheses,Structures,Electrochemical and Luminescent Properties

作　　者：刘露 程美令[1] 唐李志鹏 刘政 刘琦[1,2] LIU Lu;CHENG Mei-Ling;TANG Li-Zhi-Peng;LIU Zheng;LIU Qi(School of Petrochemical Engineering,Advanced Catalysis and Green Manufacturing Collaborative Innovation Center,Changzhou University,Changzhou,Jiangsu 213164,China;State Key Laboratory of Coordination Chemistry,Nanjing University,Nanjing 210093,China)

机构地区：[1]常州大学石油化工学院,江苏省先进催化与绿色制造协同创新中心,常州213164 [2]南京大学配位化学国家重点实验室,南京210093

出　　处：《无机化学学报》2021年第8期1449-1456,共8页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金(No.21101018,20971060);江苏省高校自然科学研究面上项目(No.13KJB150001);南京大学配位化学国家重点实验室开放课题资助。

摘　　要：将5-甲基-3-吡唑甲酸(H_(2)MPCA)与Mn􀃭或Ni􀃭金属盐反应合成了2个新的配合物:[Mn(HMPCA)_(2)(H_(2)O)_(2)](1)和[Ni(HMPCA)_(2)(2,2′-bpy)]·2H_(2)O(2)(2,2′-bpy=2,2′-联吡啶)。在单核配合物1和2中,每个金属离子均为八面体配位构型,其中HMPCA-配体均采取的是N,O-螯合的配位模式。在配合物1中的分子间氢键N—H…O和O—H…O作用下,[Mn(HMPCA)_(2)(H_(2)O)_(2)]配位单元堆积成含有1D纳米管道的3D超分子结构。在2中,[Ni(HMPCA)_(2)(2,2′-bpy)]单元和结晶水分子之间在分子间氢键作用下,形成了1D链状结构,相邻的链之间通过分子间的π…π作用形成了3D超分子结构。还考察了配合物1和2的电化学性质和荧光性能。In the absence/presence of chelating N ancillary ligand,2,2′-bipyridine(2,2′-bpy),treatment of 5-methyl-1H-pyrazole-3-carboxylic acid(H_(2)MPCA)with corresponding Mn(Ⅱ)/Ni(Ⅱ)􀃭metal salts afforded two complexes,[Mn(HMPCA)_(2)(H_(2)O)_(2)](1)and[Ni(HMPCA)_(2)(2,2′-bpy)]·2H_(2)O(2).In mononuclear complexes 1 and 2,each metal ion locates in a distorted octahedral geometry,and the HMPCA-ligands in 1 and 2 both act as a N,O-chelating ligand.In 1,by the function of intermolecular N—H…O and O—H…O hydrogen bonds,the independent[Mn(HMPCA)_(2)(H_(2)O)_(2)]units are packed into a porous 3D supramolecular structure with 1D nanotube.In 2,the mononuclear components[Ni(HMPCA)_(2)(2,2′-bpy)]and the lattice water molecules are interlinked via intermolecular O—H…O and N—H…O hydrogen bonds,generating a 1D chainlike structure,which is linked to adjacent ones through intermolecularπ…πinteractions forming a 3D supramolecular architecture.The electrochemical and luminescent properties of complexes 1 and 2 have also been investigated.CCDC:2033945,1;2033946,2.

关 键 词：5-甲基-3-吡唑甲酸 合成 晶体结构 电化学性质 荧光 

分 类 号：O614.711[理学—无机化学] O614.813[理学—化学]