二维网状Pb(Ⅱ)配合物的合成、晶体结构及荧光性质(英文)

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

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=1.07074(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)=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。

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=1.070 74（7） nm,b=2.138 03（13） nm,c=0.865 65（5） nm,V=1.981 7（2） nm3,Z=4,Dc=2.023 Mg·m-3,F（000）=1 152,GOF=1.050,μ=8.549 mm-1,R1=0.013 9,wR2=0.032 4.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.