Poly[(μ3-benzene-1,3,5-tricarboxylato-κ3O1:O3:O5)(μ2-2-methylimidazolato-κ2N:N′)tris(2-methylimidazole-κN)dizinc(II)]

Abstract

Hydrothermal reaction involving zinc nitrate hexahydrate, trisodium benzene-1,3,5-tricarboxylate (Na3BTC) and 2-methylimidazole (2-MeImH) yielded the title compound, [Zn2(C9H3O6)(C4H5N2)(C4H6N2)3]. In this mixed-ligand metal-organic compound, Zn2+ ions are coordinated by N atoms from 2-MeImH molecules and (2-MeIm)− ions, as well as by O atoms from (BTC)3− ions. This results in two different distorted tetrahedra, viz. ZnN3O and ZnN2O2. These tetrahedra are interconnected via (BTC)3− ions and N:N′-bridging (2-MeIm)− ions, thus forming a layered structure in the bc plane. Hydrogen bonds between the O atoms of carboxylate ions and NH groups of 2-MeImH ligands link the layers into a three-dimensional structure.