title: New structural features in triphenylphosphinesilver(I) sulfanylcarboxylates.
abstract: We investigated the reactions of 1.5 : 1 : 1 mole ratio mixtures of triphenylphosphine, silver nitrate and 3-(aryl)-2-sulfanylpropenoic acids H(2)xspa in chloroform/water, where in the acid nomenclature, spa = 2-sulfanylpropenoato and x = p, Clp, mp, diBr-o-hp or f with p = 3-phenyl-, Clp = 3-(2-chlorophenyl)-, mp = 3-methoxyphenyl-, diBr-o-hp = 3-(3,5-dibromo-2-hydroxyphenyl)- and f = 3-(2-furyl)-. The compounds [Ag(PPh(3))(Hpspa)](1), [(AgPPh3)2(xspa)][x = Clp (2), o-mp (3), p-mp (4), diBr-o-hp (5) and f (6)] and [Ag(PPh3)3(Hfspa)](7) were isolated and all except 7 were characterized by IR, Raman and FAB mass spectrometry and by 1H, 13C and 31P NMR spectroscopy. Compound 6 was also characterized by (13)C CP/MAS, and compounds 1 and 6 by (109)Ag NMR spectroscopy. The crystal structures of 1, 2, 3, 4.(CH3)2CO, 5, 6.(CH3)2CO and 7 were determined by X-ray diffraction. has a supramolecular structure based on hydrogen bonding between dinuclear units, and all the other complexes adopt discrete structures. 2, 3, 4.(CH3)2CO, 5, and 6.(CH3)2CO are tetranuclear, and 7 mononuclear. The tetranuclear complexes contain the eight-membered coordination ring Ag4S2O2 (2, 3, 4.(CH3)2CO, 6.(CH3)2CO) or the twelve-membered ring Ag4(CO2)2S2 (5).
authors.affiliation: Departamento de Quimica Inorganica, Facultade de Farmacia, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Galicia, Spain.
authors.forename: Elena
authors.initials: E
authors.lastname: Barreiro
authors.forename: José S
authors.initials: JS
authors.lastname: Casas
authors.forename: Maria D
authors.initials: MD
authors.lastname: Couce
authors.forename: Agustín
authors.initials: A
authors.lastname: Sánchez
authors.forename: José
authors.initials: J
authors.lastname: Sordo
authors.forename: José M
authors.initials: JM
authors.lastname: Varela
authors.forename: Ezequiel M
authors.initials: EM
authors.lastname: Vázquez-López
mesh_terms: D006860:Hydrogen Bonding; D008958:Models, Molecular; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000737:chemistry*; D013457:Sulfur Compounds / Q000737:chemistry*
chemical_list: D009942:Organometallic Compounds; D013457:Sulfur Compounds; C518139:triphenylphosphinesilver