Title of article :
Crystal structure of bis{4-bromo-2-[(carbamimidamidoimino)methyl]phenolato-κ3N,N′,O}cobalt(III) nitrate dimethylformamide monosolvate
Author/Authors :
Buvaylo, Elena A. Department of Chemistry - Taras Shevchenko National University of Kyiv, Ukraine , Kasyanova, Katerina A. Department of Chemistry - Taras Shevchenko National University of Kyiv, Ukraine , Vassilyeva, Olga Yu. Department of Chemistry - Taras Shevchenko National University of Kyiv, Ukraine , Skeltonb, Brian W. b Centre for Microscopy - Characterisation and Analysis - M313, University of Western Australia, Australia
Abstract :
The title compound, [Co(C8H8BrN4O)2]NO3·C3H7NO, is formed of discrete [CoL2]+ cations, nitrate anions and dimethylformamide (DMF) molecules of crystallization. The cation has no crystallographically imposed symmetry. The ligand molecules are deprotonated at the phenol O atom and octahedrally coordinate the CoIII atoms through the azomethine N and phenolate O atoms in a mer configuration. The deprotonated ligand molecules adopt an almost planar conformation. In the crystal lattice, the cations are arranged in layers in the ab plane divided by the nitrate anions and solvent molecules. No π–π stacking is observed. All of the amine H atoms are involved in hydrogen bonding to nitrate, DMF or ligand O atoms or to one of the Br atoms, forming two-dimensional networks parallel to (100).
Keywords :
5-bromosalicylaldehyde , crystal structure , aminoguanidine , Schiff base ligand , monomeric octahedral CoIII complex
Journal title :
Acta Crystallographica Section E: Crystallographic Communications
