title: Poly[tris-(μ-4,4'-bi-pyridine-κ(2) N:N')bis(dimethyl sulfoxide-κO)tetra-kis-(thiocyanato-κN)dicobalt(II)].
abstract: The asymmetric unit of the title compound, [Co2(NCS)4(C10H8N2)3(C2H6OS)2] n , consists of one Co(II) atom, two thio-cyanate anions, one dimethyl sulfoxide mol-ecule and one and a half 4,4'-bi-pyridine mol-ecules. The half-molecule is completed by inversion symmetry. The Co(II) atom is coordin-ated in a distorted octa-hedral geometry by two N atoms from two thio-cyanate anions, one O atom from dimethyl sulfoxide as a terminal ligand and three N atoms from three 4,4'-bi-pyridine mol-ecules as bridging ligands linking the cations, with a Co⋯Co separation of 11.5964 (5) Å. This generates a two-dimensional structure parallel to (-103). A C-H⋯S hydrogen bond links the layers into a three-dimensional supra-molecular framework. The layers are stacked in an ABC fashion preventing the occurrence of inter-layer void space and hence leading to the absence of lattice solvent and/or organic guest mol-ecules in the structure.
authors.affiliation: Materials Chemistry Research Unit, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand.
authors.forename: Surasak
authors.initials: S
authors.lastname: Kaenket
authors.affiliation: Department of Fundamental Science, Faculty of Science and Technology, Surindra Rajabhat University, Surin 32000, Thailand.
authors.forename: Pongthipun
authors.initials: P
authors.lastname: Phuengphai
authors.affiliation: Department of Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand.
authors.forename: Chaveng
authors.initials: C
authors.lastname: Pakawatchai
authors.affiliation: Materials Chemistry Research Unit, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand.
authors.forename: Sujittra
authors.initials: S
authors.lastname: Youngme