title: Peraurated nickel carbide carbonyl clusters: the cationic [Ni6(C)(CO)8(AuPPh3)8]2+ monocarbide and the [Ni12(C)(C2)(CO)17(AuPPh3)3]- anion containing one carbide and one acetylide unit.
abstract: Two new peraurated Ni-carbide carbonyl clusters have been prepared and structurally characterized, i.e. [Ni6(C)(CO)8(AuPPh3)8](2+) and [Ni12(C)(C2)(CO)17(AuPPh3)3](-). The latter is the first molecular cluster containing one carbide atom and one tightly bonded C2-unit. These display sub-van der Waals contacts suggesting the incipient formation of more extended C-C bonding.
authors.affiliation: Dipartimento di Scienze Molecolari e Nanosistemi, Ca' Foscari University of Venice, Dorsoduro 2137, 30123 Venezia, Italy.
authors.forename: Marco
authors.initials: M
authors.lastname: Bortoluzzi
authors.forename: Iacopo
authors.initials: I
authors.lastname: Ciabatti
authors.forename: Cristina
authors.initials: C
authors.lastname: Femoni
authors.forename: Mohammad
authors.initials: M
authors.lastname: Hayatifar
authors.forename: Maria Carmela
authors.initials: MC
authors.lastname: Iapalucci
authors.forename: Giuliano
authors.initials: G
authors.lastname: Longoni
authors.forename: Stefano
authors.initials: S
authors.lastname: Zacchini