title: catena-Poly[potassium [copper(II)-mu-isothiocyanato-mu-N-salicylidene-beta-alaninato2-]].
abstract: The title polymeric compound, catena-poly[dipotassium [bis[mu-N-salicylidene-beta-alaninato(2-)]-kappa(4)O,N,O':O";kappa(4)O":O,N,O'-dicopper(II)]-di-mu-isothiocyanato-kappa(2)N:S;kappa(2)S:N], [K[Cu(NCS)(C(10)H(9)NO(3))]](n), consists of [isothiocyanato(N-salicylidene-beta-alaninato)copper(II)](-) anions connected through the two three-atom thiocyanate (mu-NCS) and the two anti,anti-mu-carboxylate bridges into infinite one-dimensional polymeric anions, with coulombically interacting K(+) counter-ions with coordination number 7 constrained between the chains. The Cu(II) atoms adopt a distorted tetragonal-bipyramidal coordination, with three donor atoms of the tridentate Schiff base and one N atom of the bridging mu-NCS ligand in the basal plane. The first axial position is occupied by a thiocyanate S atom of a symmetry-related mu-NCS ligand at an apical distance of 2.9770 (8) A, and the second position is occupied by an O atom of a bridging carboxylate group from an adjacent coordination unit at a distance of 2.639 (2) A.
authors.affiliation: Laboratory of Biomolecular Structure and Dynamics, Faculty of Science, Masaryk University, Kotlárská 2, CZ-611 37 Brno, Czech Republic. marek@chemi.muni.cz
authors.forename: Jaromír
authors.initials: J
authors.lastname: Marek
authors.forename: Ján
authors.initials: J
authors.lastname: Vanco
authors.forename: Olga
authors.initials: O
authors.lastname: Svajlenová
mesh_terms: D000838:Anions; D002264:Carboxylic Acids / Q000737:chemistry; D003300:Copper / Q000737:chemistry; D018360:Crystallography, X-Ray; D007477:Ions; D008024:Ligands; D008670:Metals; D008958:Models, Molecular; D009942:Organometallic Compounds / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D011188:Potassium / Q000737:chemistry; D013861:Thiocyanates / Q000737:chemistry*
chemical_list: D000838:Anions; D002264:Carboxylic Acids; D007477:Ions; D008024:Ligands; D008670:Metals; D009942:Organometallic Compounds; D011108:Polymers; D013861:Thiocyanates; C490136:catena-poly(potassium (copper(II)-mu-isothiocyanato-mu-N-salicylidene-beta-alaninato(2-))); D003300:Copper; C031760:thiocyanate; D011188:Potassium