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Inicio » Actividades I+D > Publicaciones 2011 > Poly[[μ3-2-(carboxylatomethyl)benzoato-κ...
artículo con referato
A.M. Atria, G. Corsini, M.T. Garland and R. Baggio
Acta Cryst. C 67(11) (2011) m342-m345
In the title polymeric compound, [Cu(C9H6O4)(C3H4N2)2]n, the copper(II) cation occupies an N2O3 coordination sphere defined by two 1H-imidazole (imid) ligands in trans positions and three carboxylate O atoms from three different 2-(carboxylatomethyl)benzoate (hpt2-) dianions. The geometry is that of a square pyramid with one of the O atoms at the apex, bridging neighbouring metal centres into an [-ON2CuO2CuN2O-] dinuclear unit. These units are in turn connected by hpt anions into a reticular mesh topologically characterized by two types of loops, viz. a four-membered Cu2O2 diamond motif and a 32-membered Cu4O8C20 ring. The imid groups do not take part in the formation of the two-dimensional structure, but take part in the N–HO interactions. These arise only within individual planes, interplanar interactions being only of the van der Waals type.
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