Crystal Structure of a New Zn(II) COordination Polymer Based on a Chiral Salen Schiff Base

Abstract

A new 1D Zn(II) coordination polymer [Zn(L)(PTA)(CH3OH)3]n (1) (L = N,N′-bis-(2-hydroxy-1- naphthalidehydene)-(1R,2R)-cyclohexanediamine, PTA = terephthalic acid) is synthesized and characterized by single crystal X-ray diffraction and elemental analysis. The X-ray crystallographic study shows that complex 1 crystallizes in the triclinic space group Pī. The central Zn(II) ion is six-coordinated with one phenolic oxygen atom from the chiral ligand L, two carboxylate oxygen atoms from two PTA ligands, and three CH3OH molecules. The Zn(II) ions are bridged by PTA molecules to form a 1D chain structure, and the chains are further assembled into a 2D supramolecular network via intermolecular hydrogen bonds and π–π interactions.