Hydrothermal synthesis and crystal structure of an infinite 1D ladderlike metal-organic compound:: [Cu2](btec)(2,2′-bipy)2]∞ (btec=1,2,4,5-benzenetetracarboxylate)

A new metal-organic hybrid compound [Cu-2(btec)(2,2'-bipy)(2)](infinity) (btec = 1,2,4,5-benzenetetracarboxylate) has been hydrothermally synthesized and characterized by elemental analyses, IR spectrum, TG analysis and single-crystal X-ray diffraction. Dark-blue crystals crystallizes in the monoclinic system, space group P2(1)/n, a = 7.2587(15) Angstrom, b = 12.396(3) Angstrom, c = 14.428(3) Angstrom, beta = 103.87(3)degrees, V = 1260.4(4) Angstrom(3), Z = 2, R1 = 0.0553, wR2 = 0.1746. The title compound exhibits a new infinite 1D ladderlike chain architecture constructed from the {Cu(2,2'-bipy)}(2+) moieties and btec ligands. Furthermore, the adjacent chains are stacked into a 3D supramolecular framework via pi-pi stacking interactions of bipy groups and intermolecular hydrogen bonding interactions. (C) 2003 Elsevier B.V. All rights reserved.