A novel three-dimensional metal-organic network, Zn2(btec)(pipz)(H2O) (btec=1,2,4,5-benzenetetracarboxylate, pipz = piperazine), with blue fluorescent emission

A novel metal-organic compound Zn-2(btec)(pipz)(H2O) (1) (btec = 1,2,4,5-benzenetetracarboxylate, pipz = piperazine) has been hydrothermally synthesized and characterized by elemental analyses, IR spectrum, TG analysis, luminescent spectrum and single-crystal X-ray diffraction. The title compound exhibits a novel three-dimensional network, which consists of two-dimensional wavelike sheets linked by zinc metal centers and piperazine. Compound 1 provides the first coordination network structure constructed together by bridging piperazine and btec mixed ligand. The study of the physical properties of 1 demonstrates that it exhibits a fluorescent emission in solid state at room temperature. (C) 2004 Elsevier B.V. All rights reserved.