Bis{2-[(pyridin-2-yl)methyl-idene-amino]-benzoato-κ(3) N,N',O}chromium(III) nitrate monohydrate.

Olga Yu Vassilyeva,Vladimir N Kokozay,Brian W Skelton,Elena A Buvaylo

doi:10.1107/s1600536814005649

Abstract

The title complex salt hydrate, [Cr(C13H9N2O2)2]NO3·H2O, comprises discrete cations, nitrate anions and solvent water molecules. The CrIII atom is octahedrally coordinated by two anionic Schiff base ligands with the O atoms being cis. The two ligands differ significantly with dihedral angles between the pyridine and benzene rings of 4.8 (2) and 24.9 (2)°. The nitrate anion and solvent water molecule were modelled as being disordered, with the major components having site-occupancy values of 0.856 (14) and 0.727 (16), respectively. The crystal is built of alternating layers of cations and of anions plus water molecules, stacked along the c axis.

Highlights

The title complex salt hydrate, [Cr(C13H9N2O2)2]NO3H2O, comprises discrete cations, nitrate anions and solvent water molecules
The CrIII atom is octahedrally coordinated by two anionic Schiff base ligands with the O atoms being cis
Research Facility at the Centre for Microscopy, Characterization & Analysis, the University of Western Australia, a facility funded by the University, and the State and Supporting information for this paper is available from the IUCr electronic archives (Reference: TK5300)

Summary

Crystal data

Key indicators: single-crystal X-ray study; T = 100 K; mean (C–C) = 0.007 Å; Hatom completeness 91%; disorder in solvent or counterion; R factor = 0.057; wR factor = 0.136; data-to-parameter ratio = 11.2. The title complex salt hydrate, [Cr(C13H9N2O2)2]NO3H2O, comprises discrete cations, nitrate anions and solvent water molecules. The CrIII atom is octahedrally coordinated by two anionic Schiff base ligands with the O atoms being cis. The two ligands differ significantly with dihedral angles between the pyridine and benzene rings of 4.8 (2) and 24.9 (2). The nitrate anion and solvent water molecule were modelled as being disordered, with the major components having site-occupancy values of 0.856 (14) and 0.727 (16), respectively. The crystal is built of alternating layers of cations and of anions plus water molecules, stacked along the c axis

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