1989
DOI: 10.1002/bio.1170030308
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Determination of absolute chemiluminescence quantum yields for reactions of bis‐(pentachlorophenyl) oxalate, hydrogen peroxide and fluorescent compounds

Abstract: Absolute chemiluminescence quantum yields (phi CL) 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 phi CL … Show more

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Cited by 38 publications
(34 citation statements)
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“…The peroxyoxalate system is the only chemiluminescent reaction supposed to involve an intermolecular chemically initiated electron exchange luminescence (CIEEL) mechanism (1, 2) with proven high quantum yields (3,4). This system consists of a base-catalysed reaction of activated oxalic phenylesters with hydrogen peroxide in the presence of highly fluorescent aromatic hydrocarbons with low oxidation potentials as chemiluminescent activators.…”
Section: Introductionmentioning
confidence: 99%
“…The peroxyoxalate system is the only chemiluminescent reaction supposed to involve an intermolecular chemically initiated electron exchange luminescence (CIEEL) mechanism (1, 2) with proven high quantum yields (3,4). This system consists of a base-catalysed reaction of activated oxalic phenylesters with hydrogen peroxide in the presence of highly fluorescent aromatic hydrocarbons with low oxidation potentials as chemiluminescent activators.…”
Section: Introductionmentioning
confidence: 99%
“…Since Chandross first discovered the peroxyoxalate chemiluminescence (PO-CL) reaction [1], much attention has been paid to this CL and chemists have tried to elucidate its mechanism for a long time because of high efficiency [23] and usefulness in analytical chemistry [26,27].…”
Section: Introductionmentioning
confidence: 99%
“…121 Através de estudos cinéticos, também foi possível se confirmar a alta eficiência da formação de estados excitados do mecanismo CIEEL, 21,122,123 como observado em estudos anteriores do sistema peróxi-oxalato. 7,124 A validade do mecanismo CIEEL foi confirmada dentro desse sistema, uma vez que se obtiveram evidências da ocorrência de uma transferência de elétron na etapa de quimiexcitação, ou no mínimo de uma transferência de carga, quando da correlação entre constantes de velocidade relativas, obtidas de forma indireta, e o potencial de oxidação dos ativadores. 21 Utilizando-se a Equação de 92 Ciscato et al, 121 através de um arranjo experimental que permite o acúmulo do IAE no meio reacional, conseguiram medir diretamente as constantes de velocidade de decomposição do IAE mediante adição do ACT.…”
Section: 99unclassified