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  • Title: A unique three-dimensional coordination cluster based on a silver carbene complex.
    Author: Mrutu A, Dickie DA, Goldberg KI, Kemp RA.
    Journal: Inorg Chem; 2011 Apr 04; 50(7):2729-31. PubMed ID: 21366253.
    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.
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