Catena-Poly[[zinc(II)-bis-[μ-1,3-bis-(imidazol-1-ylmeth-yl) benzene-κ2 N 3:N 3′]] dinitrate methanol solvate]

摘要

In the title coordination compound, {[Zn(C14H14N 4)2](NO3)2·CH3OH} 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 ZnII 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].