title: Zwitterionic metalates of group 11 elements and their use as metalloligands for the assembly of multizwitterionic clusters.
abstract: Reaction of RNHC(S)PPh2NPPh2C(S)NR (HRSNS; R = Me, Et) with M(I) (M = Cu, Ag, Au) salts afforded zwitterionic complexes of the general formula [M(RSNS)] (M = Cu, Ag, Au). The ligand was found in the solid state in S,S-kappa2 and S,N,S-kappa3 coordination fashions. [Cu(RSNS)] and [Ag(RSNS)] can be used as metalloligand building blocks for the assembly of pentanuclear multizwitterionic Cu5, Cu3Ag2 and Ag5 core clusters of the general formula [M'2{M(RSNS)}3]2+ (M = Cu, M' = Cu, Ag; M = M' = Ag) upon reaction with suitable M' salts. The crystal structures of the most significant compounds are reported herein. Compound [Ag2{Ag(RSNS)}2(OTf)2] was also isolated and structurally characterized, representing a model for the intermediate species of the aforementioned assembly.
authors.affiliation: Dipartimento di Chimica Generale ed Inorganica, Chimica Analitica, Chimica Fisica, Università di Parma, Parco Area delle Scienze 17/A, I-43100 Parma, Italy.
authors.forename: Roberto
authors.initials: R
authors.lastname: Pattacini
authors.forename: Lorenzo
authors.initials: L
authors.lastname: Barbieri
authors.forename: Alessandro
authors.initials: A
authors.lastname: Stercoli
authors.forename: Daniele
authors.initials: D
authors.lastname: Cauzzi
authors.forename: Claudia
authors.initials: C
authors.lastname: Graiff
authors.forename: Maurizio
authors.initials: M
authors.lastname: Lanfranchi
authors.forename: Antonio
authors.initials: A
authors.lastname: Tiripicchio
authors.forename: Lisa
authors.initials: L
authors.lastname: Elviri