title: Transition metal complexes with thiosemicarbazide-based ligands. XLII. Bis(S-methylisothiosemicarbazido-N1, N4)bis(pyrazole-N2)-nickel(II) diiodide.
abstract: In the title compound, [Ni(C(2)H(7)N(3)S)(2)(C(3)H(4)N(2))(2)]I(2), the Ni(II) ion assumes a centrosymmetric distorted octahedral geometry. The two molecules of S-methylisothiosemicarbazide are coordinated as bidentate ligands via the terminal N atoms, forming five-membered chelate rings. The I atoms are approximately in the equatorial plane of the chelate rings at a similar distance from both. The five-membered chelate rings are almost planar and exhibit flattened envelope conformations. There is a weak intermolecular interaction between the lone pair of electrons of the S atom and the center of the pyrazole ring.
authors.affiliation: Vinca Institute of Nuclear Sciences, Laboratory of Theoretical Physics and Condensed Matter Physics, 11001 Belgrade, PO Box 522, Yugoslavia. goranb@rt270.vin.bg.ac.yu
authors.forename: G A
authors.initials: GA
authors.lastname: Bogdanović
authors.forename: V M
authors.initials: VM
authors.lastname: Leovac
authors.forename: S B
authors.initials: SB
authors.lastname: Novaković
authors.forename: V I
authors.initials: VI
authors.lastname: Cesljević
authors.forename: A
authors.initials: A
authors.lastname: Spasojević-de Biré
mesh_terms: D002614:Chelating Agents / Q000737:chemistry*; D018360:Crystallography, X-Ray; D006860:Hydrogen Bonding; D008958:Models, Molecular; D009942:Organometallic Compounds / Q000737:chemistry*; D011720:Pyrazoles / Q000737:chemistry*
chemical_list: D002614:Chelating Agents; D009942:Organometallic Compounds; D011720:Pyrazoles; C441500:bis(S-methylisothiosemicarbazido-N1, N4)bis(pyrazole-N2)-nickel(II) diiodide