Ruthenium Complexation in an Aluminium Metal–Organic Framework and Its Application in Alcohol Oxidation Catalysis

Authors

  • Fabian Carson,

    1. Berzelii Center EXSELENT on Porous Materials, Stockholm University, SE-10691 Stockholm (Sweden), Fax: (+46) 8-15-4908
    2. Inorganic and Structural Chemistry, Department of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, SE-10691 Stockholm (Sweden)
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  • Dr. Santosh Agrawal,

    1. Berzelii Center EXSELENT on Porous Materials, Stockholm University, SE-10691 Stockholm (Sweden), Fax: (+46) 8-15-4908
    2. Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-10691 Stockholm (Sweden)
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  • Dr. Mikaela Gustafsson,

    Corresponding author
    1. Berzelii Center EXSELENT on Porous Materials, Stockholm University, SE-10691 Stockholm (Sweden), Fax: (+46) 8-15-4908
    2. Inorganic and Structural Chemistry, Department of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, SE-10691 Stockholm (Sweden)
    • Berzelii Center EXSELENT on Porous Materials, Stockholm University, SE-10691 Stockholm (Sweden), Fax: (+46) 8-15-4908
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  • Agnieszka Bartoszewicz,

    1. Berzelii Center EXSELENT on Porous Materials, Stockholm University, SE-10691 Stockholm (Sweden), Fax: (+46) 8-15-4908
    2. Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-10691 Stockholm (Sweden)
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  • Francisca Moraga,

    1. Berzelii Center EXSELENT on Porous Materials, Stockholm University, SE-10691 Stockholm (Sweden), Fax: (+46) 8-15-4908
    2. Inorganic and Structural Chemistry, Department of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, SE-10691 Stockholm (Sweden)
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  • Prof. Xiaodong Zou,

    Corresponding author
    1. Berzelii Center EXSELENT on Porous Materials, Stockholm University, SE-10691 Stockholm (Sweden), Fax: (+46) 8-15-4908
    2. Inorganic and Structural Chemistry, Department of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, SE-10691 Stockholm (Sweden)
    • Berzelii Center EXSELENT on Porous Materials, Stockholm University, SE-10691 Stockholm (Sweden), Fax: (+46) 8-15-4908
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  • Assoc. Prof. Belén Martín-Matute

    Corresponding author
    1. Berzelii Center EXSELENT on Porous Materials, Stockholm University, SE-10691 Stockholm (Sweden), Fax: (+46) 8-15-4908
    2. Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-10691 Stockholm (Sweden)
    • Berzelii Center EXSELENT on Porous Materials, Stockholm University, SE-10691 Stockholm (Sweden), Fax: (+46) 8-15-4908
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Abstract

A ruthenium trichloride complex has been loaded into an aluminium metal–organic framework (MOF), MOF-253, by post-synthetic modification to give MOF-253-Ru. MOF-253 contains open bipyridine sites that are available to bind with the ruthenium complex. MOF-253-Ru was characterised by elemental analysis, N2 sorption and X-ray powder diffraction. This is the first time that a Ru complex has been coordinated to a MOF through post-synthetic modification and used as a heterogeneous catalyst. MOF-253-Ru catalysed the oxidation of primary and secondary alcohols, including allylic alcohols, with PhI(OAc)2 as the oxidant under very mild reaction conditions (ambient temperature to 40 °C). High conversions (up to >99 %) were achieved in short reaction times (1–3 h) by using low catalyst loadings (0.5 mol % Ru). In addition, high selectivities (>90 %) for aldehydes were obtained at room temperature. MOF-253-Ru can be recycled up to six times with only a moderate decrease in substrate conversion.

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