title: A three-dimensional metal-organic polymer: poly[bis(μ₂-pyrimidine-2-thiolato-κ⁴N¹,S:S,N³)lead(II)].
abstract: The title compound, [Pb(C4H3N2S)2]n, was prepared by the reaction of [Pb(OAc)2]·3H2O (OAc is acetate) with pyrimidine-2-thione in the presence of triethylamine in methanol. In the crystal structure, the Pb(II) atom has an N4S4 coordination environment with four ligands coordinated by N- and S-donor atoms. This compound shows that the pyrimidine-2-thiolate anion can lead to a three-dimensional network when the coordination number of the metal ion can be higher than 6, as is the case with the Pb(II) ion. This compound presents only covalent bonds, showing that despite the possibility of the hemidirected geometries of Pb(II), the eight-coordinated ion does not allow the formation of an isolated molecular structure with pyrimidine-2-thiolate as the ligand.
authors.affiliation: Faculdade de Ciências Exatas e Tecnologia, Universidade Federal da Grande Dourados, Rodovia Dourados-Itahum, km 12, Dourados-MS 79804-970, Brazil.
authors.forename: Vania Denise
authors.initials: VD
authors.lastname: Schwade
authors.affiliation: Departamento de Química, Universidade Federal de Santa Maria, Avenida Roraima, 1000, Camobi, Santa Maria-RS 97105-900, Brazil.
authors.forename: Ernesto Schulz
authors.initials: ES
authors.lastname: Lang
authors.affiliation: Departamento de Química, Universidade Federal de Santa Maria, Avenida Roraima, 1000, Camobi, Santa Maria-RS 97105-900, Brazil.
authors.forename: Luana
authors.initials: L
authors.lastname: Floriano
mesh_terms: D056831:Coordination Complexes / Q000737:chemistry*; D018360:Crystallography, X-Ray; D006860:Hydrogen Bonding; D008024:Ligands; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000737:chemistry*; D011743:Pyrimidines / Q000737:chemistry*; D013438:Sulfhydryl Compounds / Q000737:chemistry*
chemical_list: D056831:Coordination Complexes; D008024:Ligands; D009942:Organometallic Compounds; D011743:Pyrimidines; D013438:Sulfhydryl Compounds; C000602395:poly(bis(mu2-pyrimidine-2-thiolato-kappa4N1,S-S,N3)lead(II)); C000602396:pyrimidine-2-thiolate
keywords: crystal structure; lead(II) complex; net topology; pyrimidine-2-thiolate; three-dimensional coordination polymer