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    Rhodium(I)-a-Phenylvinylfluorenyl Complexes: Synthesis, Characterization, and Evaluation as Initiators in the Stereospecific Polymerization of Phenylacetylene

    Access Status
    Fulltext not available
    Authors
    Tan, N.
    Simpson, Peter
    Nealon, G.
    Sobolev, A.
    Raiteri, Paolo
    Massi, Massimiliano
    Ogden, Mark
    Lowe, Andrew
    Date
    2019
    Type
    Journal Article
    
    Metadata
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    Citation
    Tan, N. and Simpson, P. and Nealon, G. and Sobolev, A. and Raiteri, P. and Massi, M. and Ogden, M. et al. 2019. Rhodium(I)-a-Phenylvinylfluorenyl Complexes: Synthesis, Characterization, and Evaluation as Initiators in the Stereospecific Polymerization of Phenylacetylene. European Journal of Inorganic Chemistry. 2019 (5): pp. 592-601.
    Source Title
    European Journal of Inorganic Chemistry
    DOI
    10.1002/ejic.201801411
    ISSN
    1434-1948
    School
    Nanochemistry Research Institute
    URI
    http://hdl.handle.net/20.500.11937/74718
    Collection
    • Curtin Research Publications
    Abstract

    The synthesis, characterization and use, as initiators for phenylacetylene polymerizations, of three new rhodium(I)-vinyl complexes containing fluorenyl functionality with fluorine-functionalized phosphine ligands is described. Rh(nbd)(CPh=CFlu)P(4-FC6H4)3, Rh(nbd)(CPh=CFlu)P(4-CF3C6H4)3, and Rh(nbd)(CPh=CFlu)P[3,5-(CF3)2C6H3]3 (nbd: 2,5-norbornadiene; Flu: fluorenyl) were prepared and isolated as discrete, orange compounds and were readily recrystallized yielding X-ray quality crystals. All complexes were characterized by a combination of 1H, 31P, 19F, 103Rh NMR spectroscopy and 2D 31P-103Rh/31P-103Rh{103Rh} heteronuclear multiple-quantum correlation (HMQC) experiments, elemental analysis, and single-crystal X-ray analysis. The complexes were active as initiators in the co-ordination insertion polymerization of phenylacetylene, with initiation efficiencies spanning the range 13–56 %, and yielded polyphenylacetylenes of low dispersity (Ð = Mw/Mn) with high cis-transoidal stereoregularity.

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