Chen Hong, Xu Heng
Acta Crystallogr Sect E Struct Rep Online. 2012 Jun 1;68(Pt 6):m826. doi: 10.1107/S1600536812022544. Epub 2012 May 26.
In the two-dimensional title coordination polymer, Zn(C(8)H(4)O(4))(C(14)H(14)N(4)), the Zn(II) atom adopts a distorted tetra-hedral geometry, being ligated by two O atoms from two different benzene-1,3-dicarboxyl-ate dianions and two N atoms from two symmetry-related 1,2-bis-(imidazol-1-ylmeth-yl)benzene mol-ecules. The dihedral angles between the imidazole rings and the benzene ring in the neutral ligand are 76.31 (13) and 85.33 (15)°. The Zn(II) atoms are bridged by dicarboxyl-ate ligands, forming chains parallel to the a axis, which are further linked by 1,2-bis-(imidazol-1-ylmeth-yl)benzene mol-ecules, generating a two-dimensional layer structure parallel to the ac plane. The crystal structure is enforced by intra-layer and inter-layer C-H⋯O hydrogen bonds.
在二维标题配位聚合物[Zn(C₈H₄O₄)(C₁₄H₁₄N₄)]ₙ中,Zn(II)原子采用扭曲的四面体几何构型,由来自两个不同苯-1,3-二羧酸二阴离子的两个O原子和来自两个对称相关的1,2-双(咪唑-1-基甲基)苯分子的两个N原子配位。中性配体中咪唑环与苯环之间的二面角为76.31 (13)°和85.33 (15)°。Zn(II)原子由二羧酸酯配体桥连,形成平行于a轴的链,这些链通过1,2-双(咪唑-1-基甲基)苯分子进一步连接,生成平行于ac平面的二维层状结构。晶体结构由层内和层间的C—H⋯O氢键加强。