title: Crystal structure oftrans-di-aqua-bis-(4-cyano-benzoato-κO)bis-(N,N-di-ethyl-nicotinamide-κN)zinc(II).
abstract: In the title complex, [Zn(C8H4NO2)2(C10H14N2O)2(H2O)2], the ZnIIcation, located on an inversion centre, is coordinated by two water mol-ecules, two 4-cyano-benzoate (CB) anions and two di-ethyl-nicotinamide (DENA) ligands in a distorted N2O4octa-hedral geometry. In the mol-ecule, the dihedral angle between the planar carboxyl-ate group and the adjacent benzene ring is 9.50 (14)°, while the benzene and pyridine rings are oriented at a dihedral angle of 56.99 (5)°. The water mol-ecules exhibit both an intra-molecular hydrogen bond [to the non-coordinating carboxyl-ate O atom, enclosing anS(6) hydrogen-bonding motif, where O⋯O = 2.6419 (19) Å] and an inter-molecular hydrogen bond [to the amide carbonyl O atom, enclosing anR22(16) ring motif, where O⋯O = 2.827 (2) Å]; the latter lead to the formation of supra-molecular chains propagating along the [110] direction.
authors.affiliation: SANAEM, Saray Mahallesi, Atom Caddesi, No:27, 06980 Saray-Kazan, Ankara, Turkey.
authors.forename: Nurcan
authors.initials: N
authors.lastname: Akduran
authors.affiliation: Department of Chemistry, Kafkas University, 36100 Kars, Turkey; International Scientific Research Centre, Baku State University, 1148 Baku, Azerbaijan.
authors.forename: Hacali
authors.initials: H
authors.lastname: Necefoğlu
authors.affiliation: Department of Chemistry, Kafkas University, 36100 Kars, Turkey.
authors.forename: Ömer
authors.initials: Ö
authors.lastname: Aydoğdu
authors.affiliation: Department of Physics, Hacettepe University, 06800 Beytepe, Ankara, Turkey.
authors.forename: Tuncer
authors.initials: T
authors.lastname: Hökelek
keywords: benzoate; crystal structure; nicotinamide derivatives; zinc complex