title: Poly[bis-(cyanato-κN)bis-(μ-pyrazine-κN:N')cobalt(II)].
abstract: In the crystal structure of the title compound, [Co(NCO)(2)(C(4)H(4)N(2))(2)](n), the Co(II) cation is coordinated by four N-bonded pyrazine ligands and two N-bonded cyanate anions in a slightly distorted octa-hedral geometry. The crystal structure consists of μ-N:N' pyrazine-bridged cobalt cyanate chains; these are further linked by additional μ-N:N'-bridging pyrazine ligands into layers, which are stacked perpendicular to the crystallographic a axis. The C and O atoms in both crystallographic independent cyanate anions are disordered in two orientations and were refined using a split model with site occupation factor ratios of 0.75/0.25 and 0.7/0.3.
authors.affiliation: Institut für Anorganische Chemie, Christian-Albrechts-Universität Kiel, Max-Eyth-Strasse 2, D-24118 Kiel, Germany.
authors.forename: Mario
authors.initials: M
authors.lastname: Wriedt
authors.forename: Inke
authors.initials: I
authors.lastname: Jess
authors.forename: Christian
authors.initials: C
authors.lastname: Näther