Bis(4-benzoyl-3-methyl-1-phenyl-4,5-dihydro-1H-pyrazol-5-olato-κ2O,O′)(methanol-κO)dioxidouranium(VI) methanol monosolvate

Ouarda Dehbi,Saida Keraghel,Sofiane Bouacida,Fatiha Benghanem,Ali Ourari

doi:10.1107/s1600536812011075

Abstract

In the title compound, [U(C17H13N2O2)2O2(CH3OH)]·CH3OH, the UVI ion is coordinated by seven O atoms in a distorted pentagonal–bipyramidal geometry with two 3-methyl-1-phenyl-4-benzoyl-4,5-dihydro-1H-pyrazol-5-olate groups with two O atoms in a bidentate chelating coordination mode and by three O atoms, one of which is from a methanol ligand. The crystal packing can be described by alternating layers of complex molecules along the a axis. The structure is stabilized by O—H⋯N and O—H⋯O hydrogen bonding and van der Waals interactions.

Highlights

Laboratoire d’Electrochimie, d’Ingénierie Moléculaire et de Catalyse Redox (LEIMCR), Faculté des Sciences de l’Ingénieur, Université Farhat Abbas, Sétif 19000, Algeria, and bUnité de Recherche de Chimie de l’Environnement et Moléculaire
106 mg (0.25 mmol) of dioxouranyl(II) acetate dihydrate (UO2(OAc)2,2H2O) were dissolved in 15 ml of methanol. This solution was drop wisely added, under stirring, to a methanolic solution (10 ml) containing 139 mg of 3-methyl-1phenyl-4-benzoylpyrazol-5-one (0.5 mmol, H1MPBP). This mixture was refluxed during one night after which is abandoned for several weeks until the formation of suitable crystals
The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry

Summary

Bruker APEXII diffractometer

Laboratoire d’Electrochimie, d’Ingénierie Moléculaire et de Catalyse Redox (LEIMCR), Faculté des Sciences de l’Ingénieur, Université Farhat Abbas, Sétif 19000, Algeria, and bUnité de Recherche de Chimie de l’Environnement et Moléculaire. R factor = 0.046; wR factor = 0.097; data-to-parameter ratio = 22.7. In the title compound, [U(C17H13N2O2)2O2(CH3OH)]CH3OH, the UVI ion is coordinated by seven O atoms in a distorted pentagonal–bipyramidal geometry with two 3-methyl-1-phenyl4-benzoyl-4,5-dihydro-1H-pyrazol-5-olate groups with two O atoms in a bidentate chelating coordination mode and by three O atoms, one of which is from a methanol ligand. The crystal packing can be described by alternating layers of complex molecules along the a axis. The structure is stabilized by O—H N and O—H O hydrogen bonding and van der

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