title: A unique three-dimensional coordination cluster based on a silver carbene complex.
abstract: In an attempt to perform a simple anion-exchange reaction on a pincer-carbene-ligated nickel complex using AgNO(3), we instead obtained an unexpected three-dimensional (3D) Ag(7) cluster containing a [Ag(6)] core in a twisted-bowtie geometry. The reverse-transmetalation reaction by which the carbene is transferred from nickel to silver is virtually unprecedented. The CNC pincer-carbene ligands exhibit unusual bridging modes of ligand bonding for all three donor atoms. Another unique feature is that the final structure exhibits a 3D structure brought about by the connection of two-dimensional layers of the [Ag(6)] core via a seventh Ag ion.
authors.affiliation: Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131, USA.
authors.forename: Agnes
authors.initials: A
authors.lastname: Mrutu
authors.forename: Diane A
authors.initials: DA
authors.lastname: Dickie
authors.forename: Karen I
authors.initials: KI
authors.lastname: Goldberg
authors.forename: Richard A
authors.initials: RA
authors.lastname: Kemp
mesh_terms: D018360:Crystallography, X-Ray; D008697:Methane / Q000031:analogs & derivatives* / Q000737:chemistry; D008958:Models, Molecular; D015394:Molecular Structure; D009532:Nickel / Q000737:chemistry; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D012835:Silver Nitrate / Q000737:chemistry*; D013237:Stereoisomerism
chemical_list: D009942:Organometallic Compounds; C030011:carbene; D009532:Nickel; D012835:Silver Nitrate; D008697:Methane