Ni(II) complexes with pyrazole-derived ligands. Crystal structures of [Ni(HL0)2ClH2O][Ni(HL0)(H2O)2]Cl3·CH3OH·H2O and [Ni(HL1)(H2O)2] Br2·2.5DMF

Josefina Pons, Arafa Chadghan, Jaume Casabó, Angel Alvarez-Larena, Joan Francesc Piniella, Xavier Solans, Mercè Font-Bardia, Josep Ros

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28 Citas (Scopus)

Resumen

The reaction of 3-phenyl-5-(2-pyridyl)pyrazole (HL0) and 3-phenyl-5-(6-methyl-(2-pyridyl))pyrazole (HL1) with nickel(II) salts produces mononuclear coordination compounds. The new complexes have been characterised by elemental analyses, conductivity measurements and infrared and electronic spectroscopies. Two different forms of mononuclear nickel(II) complexes have been prepared and structurally characterised by X-ray crystallography: [Ni(HL0)2Cl(H2O)][Ni(HL0) 2(H2O)2]Cl3 ·CH3OH·H2O and [Ni(HL1)2(H2O)2] Br2·2.5DMF. In the cationic complexes, the coordination of the Ni(II) is octahedral with two bidentate HL0 or HL1 neutral ligands in a cis disposition. The degree of distortion from regular octahedral geometry is compared to closely related structures. In the solid state, cations and anions are bonded by hydrogen bonding. © 2001 Elsevier Science Ltd. All rights reserved.
Idioma originalInglés
Páginas (desde-hasta)1029-1035
PublicaciónPolyhedron
Volumen20
N.º9-10
DOI
EstadoPublicada - 30 abr 2001

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Profundice en los temas de investigación de 'Ni(II) complexes with pyrazole-derived ligands. Crystal structures of [Ni(HL0)2ClH2O][Ni(HL0)(H2O)2]Cl3·CH3OH·H2O and [Ni(HL1)(H2O)2] Br2·2.5DMF'. En conjunto forman una huella única.

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