基于1,3-双(羧甲基)咪唑鎓盐钡、锌配位聚合物的合成及其结构研究  

Synthesis and Structure of Ba(Ⅱ)and Zn(Ⅱ)Coordination Polymers Based on 1,3-Bis(carboxymethyl)imidazolium

作　　者：张帆[1] 谢世玉 由立新[1] 孙亚光[1] ZHANG Fan;XIE Shiyu;YOU Lixin;SUN Yaguang(Shenyang University of Chemical Technology,Shenyang 110142,China)

机构地区：[1]沈阳化工大学理学院,辽宁沈阳110142

出　　处：《沈阳化工大学学报》2024年第1期1-6,共6页Journal of Shenyang University of Chemical Technology

摘　　要：使用两性离子配体1,3-双(羧甲基)咪唑鎓盐(HBCI)分别与金属钡盐和金属锌盐进行反应,在溶剂热条件下,合成两个新型配位聚合物[Ba(BCI)NO_(3)(H_(2)O)_(2)]_(n)和[Zn(BCI)_(2)]_(n).通过单晶X-射线衍射、元素分析、粉末X-射线衍射和热重分析对其进行表征.单晶X-射线衍射分析结果表明:配位聚合物[Ba(BCI)NO_(3)(H_(2)O)_(2)]_(n)属于单斜晶系,C c空间群,a=1.3162(11)nm,b=1.4944(11)nm,c=0.8517(7)nm,β=127.87°,Z=4;配位聚合物[Zn(BCI)_(2)]_(n)属于单斜晶系,C c空间群,a=1.7216(5)nm,b=0.7445(2)nm,c=1.2906(4)nm,β=106.53°,Z=4.配位聚合物[Ba(BCI)NO_(3)(H_(2)O)_(2)]_(n)以相邻Ba^(2+)通过BCI-配体羧基氧原子桥连,形成一维链状结构,进一步以BCI^(-)配体桥连,形成具有{4^(4)}拓扑的二维网状结构;配位聚合物[Zn(BCI)_(2)]_(n)由Zn^(2+)离子与BCI^(-)配体的羧基氧原子桥连,形成具有{4^(4);6^(2)}拓扑的二维网状结构.Two coordination polymers,[Ba(BCI)NO_(3)(H_(2)O)_(2)]_(n)and[Zn(BCI)_(2)]_(n)(HBCI=1,3-bis(carboxymethyl)imidazolium),have been synthesized under solvothermal conditions and characterized by single crystal X-ray diffraction,elemental,powder X-ray diffraction and thermogravimetric analysis.Crystal structure analyses indicated that[Ba(BCI)NO_(3)(H_(2)O)_(2)]_(n)crystallizes in monoclinic system,space group Cc with a=1.3162(11)nm,b=1.4944(11)nm,c=0.8517(7)nm,β=127.87°,Z=4.[Zn(BCI)_(2)]_(n)crystallizes in monoclinicsystem,space group C c with a=1.7216(5)nm,b=0.74445(2)nm,c=1.2906(4)nm,β=106.53°,Z=4.The coordination polymer[Ba(BCI)NO_(3)(H_(2)O)_(2)]_(n)was bridged by adjacent Ba^(2+)ions through the BCI-ligand carboxyl oxygen atom to form a one-dimensional chain structure,which was further bridged by BCI^(-)ligandtoform a two-dimensional mesh structure with{4^(4)}topology.The coordination polymer[Zn(BCI)_(2)]_(n)was bridged by Zn^(2+)and the carboxyl oxygen atoms of the BCI^(-)ligand to form a two-dimensional network structure with{4^(4);6^(2)}topology.

关 键 词：配位聚合物 1 3-双(羧甲基)咪唑鎓盐 晶体结构 

分 类 号：O611.4[理学—无机化学]