Liu Lei-Lei, Yu Cai-Xia, Hua Lei, Lin Lu
College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, Henan, People's Republic of China.
Acta Crystallogr C Struct Chem. 2014 Jul;70(Pt 7):650-3. doi: 10.1107/S2053229614012534. Epub 2014 Jun 6.
In the title coordination polymer, [Pb(C14H8N2O4)(CH3OH)2]n, the asymmetric unit contains half of a Pb(II) cation, half of a 2,2'-(diazene-1,2-diyl)dibenzoate dianionic ligand (denoted L(2-)) and one methanol ligand. Each Pb(II) centre is eight-coordinated by six O atoms of chelating/bridging carboxylate groups from four L(2-) ligands and two O atoms from two terminal methanol ligands, forming a distorted dodecahedron. The [PbL2(MeOH)2] subunits are interlinked via the sharing of two carboxylate O atoms to form a one-dimensional [PbL2(MeOH)2]n chain. Adjacent chains are further connected by L(2-) ligands, giving rise to a two-dimensional layer, and these layers are bridged by L(2-) linkers to afford a three-dimensional framework with a 4(12)6(3) topology.
在标题配位聚合物[Pb(C₁₄H₈N₂O₄)(CH₃OH)₂]ₙ中，不对称单元包含半个Pb(II)阳离子、半个2,2'-（重氮-1,2-二基）二苯甲酸二阴离子配体（表示为L(2-)）和一个甲醇配体。每个Pb(II)中心由来自四个L(2-)配体的螯合/桥连羧酸根基团的六个O原子和来自两个末端甲醇配体的两个O原子八配位，形成一个扭曲的十二面体。[PbL₂(MeOH)₂]亚基通过共享两个羧酸根O原子相互连接，形成一维[PbL₂(MeOH)₂]ₙ链。相邻链通过L(2-)配体进一步连接，形成二维层，并且这些层由L(2-)连接体桥连，以提供具有4(12)6(3)拓扑结构的三维框架。
