二维网状Pb(Ⅱ)配合物的合成、晶体结构及荧光性质

利用4-吡啶-3-苯甲酸(4，3-pybz)和醋酸铅在水热条件下合成了一种新型金属配合物Pb(4，3-pybz)2]_n(1)，并对其进行了元素分析、红外光谱、热重表征、X 射线单晶衍射测定。该配合物为正交晶系，Pccn空间群，a=1.070 74(7) nm，b=2.138 03(13) nm， c=0.865 65(5) nm，V=1.981 7(2) nm³，Z=4，D_c=2.023 Mg·m^-3，F(000)=1 152，GOF=1.050，μ=8.549 mm^-1，残差因子R₁=0.013 9，wR₂=0.032 4。该配合物展现了一个具有(4，4)拓扑二维波浪状网络结构，进而通过弱的π-π相互作用拓展为三维超分子体系。此外，室温下配合物1展现了弱的荧光性质。

Synthesis, Crystal Structure and Luminescent Property of 2D Network Lead(H) Complex

A new coordination polymer,Pb(4,3-pybz)2]n (1),has been hydrothermally synthesized from Pb(CH3COO)2 · 3H2O and an unsymmetrical 4-pyridin-3-yl-benzoic acid (4,3-Hpybz),which is characterized by IR,elemental analysis,thermogravimetric analysis,and single crystal X-ray diffraction.This complex crystallizes in Orthorhombic,space group Pccn with a=1.07074(7) nm,b=2.13803(13) nm,c=0.865 65(5) nm,V=1.981 7(2) nm3,Z=4,Dc=2.023 Mg·m-3,F(000)=1152,GOF=1.050,μ=8.549 mm-1,R1=0.0139,wR2=0.0324.Complex 1 shows a wavelike 2D coordination framework with (4,4) network topology,further through the weak π-π interaction formed a 3D supramolecular architectures.Furthermore,complex 1 shows weakly photoluminescent property at room temperature.CCDC:817928.