Dobrzańska Liliana
Department of Chemistry, University of Stellenbosch, Private Bag X1, Matieland, South Africa.
Acta Crystallogr Sect E Struct Rep Online. 2009 Oct 10;65(Pt 11):m1326-7. doi: 10.1107/S1600536809040203.
In the title coordination compound, {Zn(C(14)H(14)N(4))(2)(2)·CH(3)OH}(n), the cationic complex forms a looped chain containing 24-membered M(2)L(2) rings. The ligand adopts two distinct conformations that are alternated in subsequent loops. The Zn(II) ion displays a slightly distorted tetra-hedral geometry being coordinated by four N atoms from four 1,3-bis-(imidazol-1-ylmeth-yl)benzene ligands. The nitrate ions and methanol solvent mol-ecules are located between adjacent double-stranded chains and participate in an extensive net of O-H⋯O and C-H⋯O hydrogen bonds. The resulting three-dimensional assembly is further stabilized by π-π inter-actions between benzene rings [centroid-centroid distances = 3.878 (2) and 3.853 (2) Å].
在标题配合物{Zn(C₁₄H₁₄N₄)₂₂·CH₃OH}ₙ中，阳离子配合物形成了一个包含24元M₂L₂环的环状链。配体采取两种不同的构象，在后续的环中交替出现。Zn(II)离子呈现出略微扭曲的四面体几何构型，由来自四个1,3-双(咪唑-1-基甲基)苯配体的四个N原子配位。硝酸根离子和甲醇溶剂分子位于相邻的双链之间，并参与广泛的O-H⋯O和C-H⋯O氢键网络。所得的三维组装体通过苯环之间的π-π相互作用[质心-质心距离 = 3.878 (2) 和3.853 (2) Å]进一步稳定。
