摘要
由水热法合成了锌化合物[Zn2(dib)(1,3-BDC)2(H2O)](1),1,3-H2BDC=间苯二甲酸,dib=1,4-二咪唑基苯),并进行了元素分析、IR、TG及X-射线衍射法表征。晶体结构表明:配合物1属于单斜晶系,P21/n空间群。配合物1是由羧酸配体间苯二甲酸阴离子连接成一维双链,然后由1,4-二咪唑基苯连接成层状,此二维结构被氢键拓展成三维超分子结构。
A new 2D Zn(ll) metal-organic framework, [Zn2(dib)(1,3-BDC)2(H20)] (1), has been synthesized by the hydrothermal reaction of 1,3-benzenediearboxylate with ZnSO4· 7H2O in the presence of 1,4-di(1-imidazoly)benzene (dib=l,4-di(1-imidazoly)benzene, 1,3-H2BDC=l,3-benzenedicarboxylate). The crystal is of monoclinic system, space group P21/n, with a=0.803 67(12) nm, b=1.332 7(2) nm, c=2.372 5(4) nm, fl=97.394(3)°, V=2.519 9(7) nm3, Z=4, F(000)=1 392, R=0.052 0 and wR=0.099 4 (I〉2σ(I)). The two central zinc(1) ions in the complex locate in a different coordination geometry, one is a distorted tetrahedral and the other is a distorted square-pyramidal coordination geometry, respectively. The dib ligand acts as a bridging ligand, which links the 1D double-chain into 2D layer structure. The net is linked into three-dimensional supramolecular network by O-H... O hydrogen bonds. CCDC: 895702.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2013年第10期2195-2199,共5页
Chinese Journal of Inorganic Chemistry
基金
湖南省自然科学基金(No.13JJ6069)
湖南省教育厅创新平台开放基金(No.11K009)
湖南省重点学科资助项目
关键词
水热合成
锌配合物
晶体结构
荧光性能
hydrothermal synthesis
zinc(Ⅱ) complex
crystal structure
luminescence property