A New 3D Pb(Ⅱ) Coordination Polymer Pb(L)n Based on a Long Flexible Octane-1,8-dicarboxylic Acid: Crystal Structure and Physical Properties

摘要

A new Pb(Ⅱ)-based coordination polymer,[Pb(L)]n(1),was hydrothermally synthesized and its structure was determined by single-crystal X-ray diffraction(H2L=octane-1,8-dicarboxylic acid).Compound 1 crystallizes in orthorhombic,space group Pnma with a=32.061(4),b=7.2597(8),c=4.8084(5) ?,V=1119.2(2) ?3,Z=4,C10H16O4 Pb,Mr=407.42,Dc=2.418 g/cm3,F(000)=760,μ(Mo Ka)=15.066 mm-1,R=0.0270 and w R=0.0666.In 1,each Pb(Ⅱ) cation is coordinated by six carboxylate oxygen atoms from four L2- anions.Each L2- anion bridges three Pb(Ⅱ) atoms in a μ3:η2:η1:η1 mode to form a 3D framework.The structure of 1 was characterized by IR spectrum and thermogravimetric analysis.Moreover,solid state luminescent property of 1 was also investigated.