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    New Structural Motifs Resulting from Internal Constraints in Chelating Bis(NHC) Ligands: A Dinuclear Ruthenium(II) Complex Featuring an η2-Arene Binding Mode and a Remarkable New Tetrameric Silver(I) Halide Form

    Access Status
    Fulltext not available
    Authors
    Simpson, Peter
    Brown, D.
    Skelton, B.
    White, A.
    Baker, M.
    Date
    2015
    Type
    Journal Article
    
    Metadata
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    Citation
    Simpson, P. and Brown, D. and Skelton, B. and White, A. and Baker, M. 2015. New Structural Motifs Resulting from Internal Constraints in Chelating Bis(NHC) Ligands: A Dinuclear Ruthenium(II) Complex Featuring an η2-Arene Binding Mode and a Remarkable New Tetrameric Silver(I) Halide Form. Organometallics. 34 (11): pp. 2508-2514.
    Source Title
    Organometallics
    DOI
    10.1021/om5012165
    ISSN
    0276-7333
    School
    Nanochemistry Research Institute
    URI
    http://hdl.handle.net/20.500.11937/9965
    Collection
    • Curtin Research Publications
    Abstract

    © 2015 American Chemical Society. A novel dinuclear ruthenium(II) complex containing two ortho-xylylene-linked bis(NHC) ligands (NHC = N-heterocyclic carbene) has been synthesized via transmetalation from a silver-NHC complex. Each ruthenium atom in the dinuclear complex is chelated through the two carbene carbon atoms and, unusually, an η2-bound xylylene ring, two separate bis(NHC) units being linked by a Ru(μ-Cl)3Ru core. The same bis(NHC) ligand has yielded a neutral tetranuclear 4:2 AgBr:bis(NHC) complex, where ligand steric constraints seemingly inhibit formation of structures derivative of the more familiar “cubane” or “step” forms, resulting in an interesting new structural type.

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