Acta Cryst. (2009). E65, m1326-m1327  [ doi:10.1107/S1600536809040203 ]

catena-Poly[[zinc(II)-bis[-1,3-bis(imidazol-1-ylmethyl)benzene-²N³:N^3']] dinitrate methanol solvate]

L. Dobrzanska

Abstract: In the title coordination compound, {[Zn(C₁₄H₁₄N₄)₂](NO₃)₂·CH₃OH}_n, the cationic complex forms a looped chain containing 24-membered M₂L₂ rings. The ligand adopts two distinct conformations that are alternated in subsequent loops. The Zn^II ion displays a slightly distorted tetrahedral geometry being coordinated by four N atoms from four 1,3-bis(imidazol-1-ylmethyl)benzene ligands. The nitrate ions and methanol solvent molecules are located between adjacent double-stranded chains and participate in an extensive net of O-HO and C-HO hydrogen bonds. The resulting three-dimensional assembly is further stabilized by - interactions between benzene rings [centroid-centroid distances = 3.878 (2) and 3.853 (2) Å].

Online 10 October 2009

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