Crystal structure of tetrakis(isonicotinamide-κN)bis(thiocyanato-κN)cobalt(II)–isonicotinamide–ethanol (1/2/1)

• Main Authors: Tristan Neumann, Inke Jess, Christian Näther
• Format: Article
• Language: English
• Published: International Union of Crystallography 2016-08-01
• Series: Acta Crystallographica Section E: Crystallographic Communications
• Subjects: crystal structure; hydrogen bonding; isonicotinamide; cobalt
• Online Access: http://scripts.iucr.org/cgi-bin/paper?S2056989016010951

The asymmetric unit of the title compound, [Co(NCS)2(C6H6N2O)4]·2C6H6N2O·C2H5OH, comprises one CoII cation, two thiocyanate anions, four coordinating and two solvent isonicotinamide molecules and one ethanol solvent molecule. The CoII cations are octahedrally coordinated by four N-coordinating isonicotinamide ligands and two terminally N-bonded thiocyanate anions. These discrete complexes are linked by intermolecular N—H...O and N—H...S hydrogen-bonding interactions into a three-dimensional network. The two isonicotinamide and the ethanol solvent molecules are embedded in channels of this network and are linked through further N—H...O and N—H...N hydrogen bonds to the network. The ethanol solvent molecule is disordered over two sets of sites (occupancy ratio 0.6:0.4).