Dege, Necmi/0000-0003-0660-4721; Kansiz, Sevgi/0000-0002-8433-7975 WOS: 000437492100033 PubMed: 30002909 The reaction of CoCl2 with succinic acid and isonicotinamide in basic solution produces the title complex [Co(C6H6N2O)(2)(H2O)(4)](C4H4O4). The cobalt(II) ion of the complex cation and the succinate anion are each located on an inversion centre. The Co-II ion is octahedrally coordinated by four O atoms of water molecules and two N atoms of isonicotinamide molecules. The two ions are linked via O-water-H center dot center dot center dot O-succinate hydrogen bonds, forming chains propagating along [001]. In the crystal, these hydrogen-bonded chains are linked into a three-dimensional framework by further O-H center dot center dot center dot O hydrogen bonds and N-H center dot center dot center dot O hydrogen bonds. The framework is reinforced by C-H center dot center dot center dot O hydrogen bonds. Hirshfeld surface analysis and two-dimensional fingerprint plots have been used to analyse the intermolecular interactions present in the crystal. Faculty of Arts and Sciences, Ondokuz Mayis University, Turkey (University Research Fund)Ondokuz Mayis University [F.279] The authors acknowledge the Faculty of Arts and Sciences, Ondokuz Mayis University, Turkey, for the use of the Stoe IPDS 2 diffractometer (purchased under grant F.279 of the University Research Fund).
