Photophysical Properties of Methyl Triazone Included in MCM-41

Authors

  • Andrea Ricci,

    1. Department of Chemistry, Center for Catalysis Research and Innovation, University of Ottawa, Ottawa, Canada
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    • Current address: CIBA Specialty Chemicals Inc., Process Development Segment Coating Effects, Mortara Site, Mortara (PV) Italy.

  • Michelle N. Chrétien,

    1. Department of Chemistry, Center for Catalysis Research and Innovation, University of Ottawa, Ottawa, Canada
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  • Abdelhamid Sayari,

    1. Department of Chemistry, Center for Catalysis Research and Innovation, University of Ottawa, Ottawa, Canada
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  • J. C. Scaiano

    Corresponding author
    1. Department of Chemistry, Center for Catalysis Research and Innovation, University of Ottawa, Ottawa, Canada
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  • Posted on the website on 5 May 2005

*To whom correspondence should be addressed: Department of Chemistry, Center for Catalysis Research and Innovation, University of Ottawa, 10 Marie Curie, Ottawa, Canada, KIN 6N5. Fax: 613-562-5633; e-mail: tito@photo.chem.uottawa.ca

ABSTRACT

Methyl triazone (4,4′,4″-[l,3,5-triazine-2,4,6–triyItriimino]tris-trimethyl benzoate) has been included in mesoporous MCM-41 (Mobil's composition of matter-41) silica, and its fluorescence emission has been compared in solution and in the solid state. Although inclusion does not affect significantly the absorption properties, a fluorescence emission shift and a behavior similar to the solid state has been observed by increasing the loading. It is believed that this observation reflects molecular aggregation inside the MCM-41 channels. The potential of formulations of this type for sunscreen applications is discussed.

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