Aqua(oxydiacetato-ê3O,O,O)(pyridine-3-carboxamide-Baggio Ricardo

PEREC MIREILLE; BAGGIO RICARDO

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS

WILEY-BLACKWELL PUBLISHING, INC

Lugar: Malden 02148; Año: 2010 vol. 66 p. 339 - 342

0108-2701

Abstract In the monomeric title compound, [Cu(C4H4O5)(C6H6N2O)- (H2O)]1.5H2O, the CuII cation is bound in a square-pyramidal coordination to a tridentate oxydiacetate (ODA) ligand, a monodentate pyridine-3-carboxamide (p3ca) ligand and one aqua ligand, where the two organic ligands form the basal plane and the water O atom occupies the unique apical site. The ODA ligand presents a slight out-of-plane puckering in its central ether O atom, while the p3ca ligand is essentially planar. The availability of efficient donors and acceptors for hydrogen bonding results in the formation of strongly linked hydrogen-bonded bilayers parallel to (101), with an interplanar distance of 3.18 (1) A ˚ and a stacking separation between the bilayers of 3.10 (1) A ˚ , both of them governed by extended – interactions. The disordered nature of the solvent water molecules around inversion centres is discussed. The monoaqua compound is compared with the octahedral diaqua analogue, [Cu(C4H4O5)(C6H6N2O)(H2O)2], reported recently [Perec & Baggio (2009). Acta Cryst. C65, m296–m298].4H4O5)(C6H6N2O)- (H2O)]1.5H2O, the CuII cation is bound in a square-pyramidal coordination to a tridentate oxydiacetate (ODA) ligand, a monodentate pyridine-3-carboxamide (p3ca) ligand and one aqua ligand, where the two organic ligands form the basal plane and the water O atom occupies the unique apical site. The ODA ligand presents a slight out-of-plane puckering in its central ether O atom, while the p3ca ligand is essentially planar. The availability of efficient donors and acceptors for hydrogen bonding results in the formation of strongly linked hydrogen-bonded bilayers parallel to (101), with an interplanar distance of 3.18 (1) A ˚ and a stacking separation between the bilayers of 3.10 (1) A ˚ , both of them governed by extended – interactions. The disordered nature of the solvent water molecules around inversion centres is discussed. The monoaqua compound is compared with the octahedral diaqua analogue, [Cu(C4H4O5)(C6H6N2O)(H2O)2], reported recently [Perec & Baggio (2009). Acta Cryst. C65, m296–m298].2O)]1.5H2O, the CuII cation is bound in a square-pyramidal coordination to a tridentate oxydiacetate (ODA) ligand, a monodentate pyridine-3-carboxamide (p3ca) ligand and one aqua ligand, where the two organic ligands form the basal plane and the water O atom occupies the unique apical site. The ODA ligand presents a slight out-of-plane puckering in its central ether O atom, while the p3ca ligand is essentially planar. The availability of efficient donors and acceptors for hydrogen bonding results in the formation of strongly linked hydrogen-bonded bilayers parallel to (101), with an interplanar distance of 3.18 (1) A ˚ and a stacking separation between the bilayers of 3.10 (1) A ˚ , both of them governed by extended – interactions. The disordered nature of the solvent water molecules around inversion centres is discussed. The monoaqua compound is compared with the octahedral diaqua analogue, [Cu(C4H4O5)(C6H6N2O)(H2O)2], reported recently [Perec & Baggio (2009). Acta Cryst. C65, m296–m298]. interactions. The disordered nature of the solvent water molecules around inversion centres is discussed. The monoaqua compound is compared with the octahedral diaqua analogue, [Cu(C4H4O5)(C6H6N2O)(H2O)2], reported recently [Perec & Baggio (2009). Acta Cryst. C65, m296–m298].4H4O5)(C6H6N2O)(H2O)2], reported recently [Perec & Baggio (2009). Acta Cryst. C65, m296–m298].Acta Cryst. C65, m296–m298].