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Crystal Structures of nitrato-(2-hydroxybenzaldehydo) (2,2 -bipyridyl)copper and nitrato-(2-hydroxy-5-nitrobenzaldehydo)(2,2 -bipyridyl)copper
Nitrato-(2-hydroxy-5-nitrobenzaldehydo)(2,2 -bipyridyl)copper (I) and nitrato-(2-hydroxybenzaldehydo)(2,2 -bipyridyl)copper (II) were synthesized and characterized by X-ray diffraction. The coordination polyhedron of the central copper atom in complex I can be described as a distorted tetragonal pyramid whose base is formed by the phenol and carbonyl oxygen atoms of the monodeprotonated 2-hydroxy-5nitrobenzaldehyde molecule and the nitrogen atoms of the 2,2 -bipyridyl ligand and whose apex is occupied by the oxygen atom of the nitrato group. In the crystal structure, complexes I are linked by the acido ligands and the NO2 groups of the aldehyde molecule into infinite chains. In complex II, the central copper atom is coordinated by 2-hydroxybenzaldehyde, 2,2 -bipyridyl, and the nitrato group, resulting in the formation of centrosymmetric dimers. The coordination polyhedron of the central copper atom can be described as a bipyramid (4 1 1) with the same base as in complex I. The axial vertices of the bipyramid are occupied by the oxygen atom of the nitrato group and the bridging phenol oxygen atom of the adjacent complex related to the initial complex by a center of symmetry. In the crystal structure, complexes II are hydrogen bonded into infinite chains. © Pleiades Publishing, Inc., 2011.
A-center; Axial vertices; Bipyridyl; Bipyridyl ligands; Carbonyl oxygen atoms; Centrosymmetric dimers; Coordination polyhedra; Copper (ii); Copper atoms; Infinite chains; Nitrogen atom; Oxygen atom; Tetragonal pyramids; Aldehydes; Atoms; Copper; Crystal structure; Dimers; Geometry; Ligands; Oxygen; Phenols; X ray diffraction; Copper compounds
Nitrato-(2-hydroxy-5-nitrobenzaldehydo)(2,2 -bipyridyl)copper (I) and nitrato-(2-hydroxybenzaldehydo)(2,2 -bipyridyl)copper (II) were synthesized and characterized by X-ray diffraction. The coordination polyhedron of the central copper atom in complex I can be described as a distorted tetragonal pyramid whose base is formed by the phenol and carbonyl oxygen atoms of the monodeprotonated 2-hydroxy-5nitrobenzaldehyde molecule and the nitrogen atoms of the 2,2 -bipyridyl ligand and whose apex is occupied by the oxygen atom of the nitrato group. In the crystal structure, complexes I are linked by the acido ligands and the NO2 groups of the aldehyde molecule into infinite chains. In complex II, the central copper atom is coordinated by 2-hydroxybenzaldehyde, 2,2 -bipyridyl, and the nitrato group, resulting in the formation of centrosymmetric dimers. The coordination polyhedron of the central copper atom can be described as a bipyramid (4 %2b 1 %2b 1) with the same base as in complex I. The axial vertices of the bipyramid are occupied by the oxygen atom of the nitrato group and the bridging phenol oxygen atom of the adjacent complex related to the initial complex by a center of symmetry. In the crystal structure, complexes II are hydrogen bonded into infinite chains. © Pleiades Publishing, Inc., 2011.
Generically Dependent Continuant
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