title: (Cyanato-κN){1-[(E)-phen-yl(pyridin-2-yl-κN)methyl-idene]semicarbazidato-κ(2)N(1),O}copper(II).
abstract: The Cu(II) atom in the title compound, [Cu(C(13)H(11)N(4)O)(NCO)], is N,N',O-chelated by the mono-deprotonated Schiff base ligand and it is also covalently bonded to the nitro-gen end of the cyanate ion. The Cu(II) atom shows a square-planar coordination that is distorted towards square-pyramidal owing to an inter-molecular Cu⋯N(cyanate) inter-action [2.623 (2) Å], which gives a centrosymmetric dimer. In the square-planar description, the Cu(II) atom is displaced out of the square plane [r.m.s. deviation = 0.048 Å] by 0.084 (1) Å in the direction of the apical occupant. In the crystal, adjacent complex dimers are linked by an amine N-H⋯N hydrogen-bond pair, also giving a centrosymmetric cyclic association [graph set R(2) (2)(8)], generating a linear chain parallel to [110].
authors.forename: Roji J
authors.initials: RJ
authors.lastname: Kunnath
authors.forename: M R
authors.initials: MR
authors.lastname: Prathapachandra Kurup
authors.forename: Seik Weng
authors.initials: SW
authors.lastname: Ng