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    Charge-transfer complexes of arene-molybdenum-tricarbonyl complexes as heterogeneous metathesis catalysts for the polymerization of phenylacetylene


    Mula, M. Belen and Beaumont, Andrew J. and Doyle, Kevin O. and Gallagher, M. Louise and Rooney, A. Denise (1999) Charge-transfer complexes of arene-molybdenum-tricarbonyl complexes as heterogeneous metathesis catalysts for the polymerization of phenylacetylene. Journal of Molecular Catalysis A: Chemical, 148 (1-2). pp. 23-28. ISSN 1381-1169

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    Abstract

    Charge-transfer complexes were precipitated from benzene solutions of arene–metal–tricarbonyl (M=Cr, Mo) and a series of electron acceptors. The complexes were characterised by IR spectroscopy. The charge-transfer complexes of (arene)Mo(CO)3 with 2,3,5,6-tetrachloro-1,4-benzoquinone (chloranil) and with 2,3,5,6-tetrabromo-1,4-benzoquinone (bromanil) were found to be very active catalysts for the polymerization of phenylacetylene, whereas the charge-transfer complexes of the same organometallic but with 2,3,5,6-tetrafluoro-1,4-benzoquinone (fluoranil), 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ), and tetracyanoethene (TCNE) had very little activity. The analogous chromium systems were also inactive. Theoretical calculations were carried out to examine a relationship between the stability of the charge-transfer complex and its catalytic activity.

    Item Type: Article
    Keywords: Metathesis; Polymerization; Charge–transfer complexes; Molybdenum;
    Academic Unit: Faculty of Science and Engineering > Chemistry
    Item ID: 7986
    Identification Number: https://doi.org/10.1016/S1381-1169(99)00040-0
    Depositing User: Dr. Denise Rooney
    Date Deposited: 01 Mar 2017 16:02
    Journal or Publication Title: Journal of Molecular Catalysis A: Chemical
    Publisher: Elsevier
    Refereed: Yes
    Funders: Forbairt
    URI:

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