摘要
在水热条件下合成了一个新颖的配位聚合物[Cd(nip)(bix)0.5H2O]n(1)(nip=5-硝基间苯二甲酸,bix=1,4-(二亚甲基)二咪唑)。单晶X-射线衍射分析表明,晶体属三斜晶系,P1空间群,晶胞参数a=0.8271(2)nm,b=1.0165(3)nm,c=1.1474(3)nm,α=70.862(4)°,β=68.988(4)°,γ=69.001(4)°。V=0.818 4(4)nm3,Z=2,Dc=1.861g.cm-3,μ=1.380 mm-1,F(000)=454,最终的R1=0.040 0,wR2=0.090 1。配合物1中,nip2-离子以μ3桥联的方式连接Cd(Ⅱ)中心形成含有交替8元环和16元环的一维聚合链,进而,bix配体柱撑一维链形成了(3,4)-连接的二维配位网;最后,通过R22(6)氢键环的作用,二维网拓展为具有(3,5,5)-连接{3.4.5}{3.42.5.64.7.8}{3.43.52.62.72}拓扑结构的三维超分子体系。此外,本文还研究了配合物1的热稳定性和荧光性质。
A novel compound [Cd(nip)(bix)0.5H2O]n(1)(nip=5-nitroisophthalic acid and bix=1,4-bis(imidazol-1-ylmethyl)-benzene) has been hydrothermally prepared and characterized.Single-crystal X-ray diffraction studiesindicate that the compound 1 crystallizes in triclinic,space group P1 with a=0.827 1(2) nm,b=1.016 5(3) nm,c=1.147 4(3) nm,α=70.862(4)°,β=68.988(4)°,γ=69.001(4)°,V=0.818 4(4) nm3,Z=2,Dc=1.861 g.cm-3,μ=1.380mm-1,F(000)=454,and final R1=0.040 0,wR2=0.090 1.In 1,nip2-ions act as μ3-linker to bridge CdⅡ atoms intoan infinite 1D chain with alternately 8-member ring and 16-member ring,moreover,the bix ligands pillar these 1D chains into 2D(3,4)-connected coordination network.Eventually,through R22(6) H-bonding rings,these 2D nets are extended to 3D supramolecular framework showing a new(3,5,5)-connected {3.4.5} {3.42.5.64.7.8}{3.43.52.62.72} topology.In addition,the thermal and fluorescence properties associated with the compound 1 werealso investigated.CCDC:778936.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2011年第1期184-188,共5页
Chinese Journal of Inorganic Chemistry
基金
国家自然科学基金(No.21073106,20773104)
湖北省自然科学基金(No.2008CDB1302)
湖北省教育厅重大基金(No.Z20091301)
青年人才基金(No.Q20101203)资助项目
作者简介
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