title: Group 11 complexes with unsymmetrical P,S and P,Se disubstituted ferrocene ligands.
abstract: The reaction of the unsymmetrical ligands 1-diphenylphosphino-1'-(phenylsulfanyl)ferrocene and 1-diphenylphosphino-1'-(phenylselenyl)ferrocene, Fc(EPh)PPh2(E = S, Se), with several group 11 metal derivatives leads to the synthesis of complexes of the type [MX{Fc(EPh)PPh2}](M = Au, X = Cl, C6F5; M = Ag, X = OTf), (OTf = trifluoromethanesulfonate), [M{Fc(EPh)PPh2}2]X (M = Au, X = ClO4; M = Ag, X = OTf), [M(PPh3){Fc(EPh)PPh2}]OTf (M = Au, Ag), [Au2{Fc(SPh)PPh2}2](ClO4)2, [Au(C6F5)2{Fc(SePh)PPh2}]ClO4, [Au(C6F5)3{Fc(EPh)PPh2}], [Au2(C6F5)6{Fc(SePh)PPh2}] or [Cu{Fc(EPh)PPh2}2]PF6(E = S, Se). In these complexes coordination depends upon the metal centre; with gold it takes place predominantly to the phosphorus atom and with silver and copper to both phosphorus and chalcogen atoms. The treatment of some of the gold complexes with other metal centres affords heterometallic derivatives that in some cases are in equilibrium with the homometallic derivatives. Several compounds have been characterized by X-ray diffraction, four pairs of homologous compounds, yet not a single pair is isotypic. In many of them a three dimensional network is formed through secondary bonds such as hydrogen bonds, Au...Cl or Au...Se interactions. The complex [Ag(OTf){Fc(SePh)PPh2}] forms one-dimensional chains through trifluoromethanesulfonate bridging ligands.
authors.affiliation: Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, E-50009 Zaragoza, Spain.
authors.forename: Javier E
authors.initials: JE
authors.lastname: Aguado
authors.forename: Silvia
authors.initials: S
authors.lastname: Canales
authors.forename: M Concepción
authors.initials: MC
authors.lastname: Gimeno
authors.forename: Peter G
authors.initials: PG
authors.lastname: Jones
authors.forename: Antonio
authors.initials: A
authors.lastname: Laguna
authors.forename: M Dolores
authors.initials: MD
authors.lastname: Villacampa
mesh_terms: D018360:Crystallography, X-Ray; D005296:Ferrous Compounds / Q000737:chemistry*; D006046:Gold / Q000737:chemistry*; D008024:Ligands; D000075163:Metallocenes; D008958:Models, Molecular; D008968:Molecular Conformation; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D010758:Phosphorus / Q000737:chemistry*; D012643:Selenium / Q000737:chemistry*; D012834:Silver / Q000737:chemistry*; D013237:Stereoisomerism; D013455:Sulfur / Q000737:chemistry*
chemical_list: D005296:Ferrous Compounds; D008024:Ligands; D000075163:Metallocenes; D009942:Organometallic Compounds; D010758:Phosphorus; D012834:Silver; D013455:Sulfur; D006046:Gold; D012643:Selenium; C004998:ferrocene