Determination of absolute chemiluminescence quantum yields for reactions of bis-(pentachlorophenyl) oxalate, hydrogen peroxide and fluorescent compounds

Authors

  • Colin L. R. Catherall,

    1. Department of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, UK
    Current affiliation:
    1. Jules Thorn Lighting Laboratories, Thorn Lighting Ltd, Lincoln Road, Enfield, Middlesex EN1 1SB, UK.
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  • T. Frank Palmer,

    Corresponding author
    1. Department of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, UK
    • Department of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, UK
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  • Robert B. Cundall

    1. MRC Radiobiology Unit, Chilton, Didcot, Oxfordshire, OX11 oRD, UK
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Abstract

Absolute chemiluminescence quantum yields (ϕCL) for reactions of bis-(pentachlorophenyl) oxalate (PCPO), hydrogen peroxide (H2O2) and 9:10 diphenyl anthracene (DPA) have been determined. A fully corrected chemiluminescence monitoring spectrometer was calibrated for spectral sensitivity using the chemiluminescence of the bis-(pentachlorophenyl) oxalate system as a liquid light source, the total photon output of which had previously been determined by chemical actinometry. At high (PCPO)/(H2O2) ratios ϕCL was found to be independent of PCPO and H2O2 concentrations.

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