A one-dimensional coordination polymer based on a di-Schiff base supported trinuclear CuII subunit

作者：Zhang Liangliang; Liu Fuling; Yuan Shuai; Wang Xiaoyang; Sun Di^*

来源：Acta Crystallographica Section C-Crystal Structure Communications, 2012, 68: M97-M99.

DOI：10.1107/S0108270112009936

A novel one-dimensional CuII coordination polymer, catena-poly[bis(mu 4-3-{[2-(3-hydroxy-2-oxidobenzylidene)hydrazinylidene]methyl}benzene-1,2-diolato)dimethanoltricopper(II)], [Cu3(C14H10N2O4)2(CH3OH)2]n, (I), was constructed with a di-Schiff base supported centrosymmetric trinuclear CuII subunit. In the subunit, two peripheral symmetry-related CuII cations have square-pyramidal CuNO4 geometry and the central third CuII cation lies on an inversion centre with octahedral CuN2O4 geometry. In (I), each partially deprotonated di-Schiff base 3-{[2-(3-hydroxy-2-oxidobenzylidene)hydrazinylidene]methyl}benzene-1,2-diolate ligand (Hbcaz3-) acts as a heptadentate ligand to bind the CuII centres into chains along the a axis. A centrosymmetric Cu2O2 unit containing an asymmetrically bridging O atom, being axial at one Cu atom and equatorial at the other Cu atom, links the trinuclear CuII subunit into a one-dimensional chain, which is reinforced by intramolecular phenolmethanol OH...O and methanolphenolate OH...O hydrogen bonds. Interchain pp stacking interactions between pyrocatechol units, with a distance of 3.5251 (18) angstrom, contribute to the stability of the crystal packing.

• 出版日期2012-4
• 单位山东大学