A two-dimensional ZnII coordination polymer constructed from benzene-1,2,3-tricarboxylic acid and N,N'-bis[(pyridin-4-yl)methylidene]hydrazine

Acta Crystallogr C Struct Chem. 2015 Jul;71(Pt 7):521-5. doi: 10.1107/S2053229615010657. Epub 2015 Jun 13.

Abstract

The hydrothermal synthesis of the novel complex poly[aqua(μ4-benzene-1,2,3-tricarboxylato)[μ2-4,4'-(hydrazine-1,2-diylidenedimethanylylidene)dipyridine](μ3-hydroxido)dizinc(II)], [Zn(C9H3O6)(OH)(C12H10N4)(H2O)]n, is described. The benzene-1,2,3-tricarboxylate ligand connects neighbouring Zn4(OH)2 secondary building units (SBUs) producing an infinite one-dimensional chain. Adjacent one-dimensional chains are connected by the N,N'-bis[(pyridin-4-yl)methylidene]hydrazine ligand, forming a two-dimensional layered structure. Adjacent layers are stacked to generate a three-dimensional supramolecular architecture via O-H...O hydrogen-bond interactions. The thermal stability of this complex is described and the complex also appears to have potential for application as a luminescent material.

Keywords: N,N′-bis[(pyridin-4-yl)methylidene]hydrazine; Zn4(OH)2 secondary building unit; benzene-1,2,3-tricarboxylic acid; crystal structure; photoluminescence properties; thermogravimetric analysis; two-dimensional zinc(II) coordination polymer.