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'Chemiluminescence' in keywords Facet   section ZfN Section B  [X]
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1978 (2)
1Author    Joachim Staufif, Wolfgang JaeschkeRequires cookie*
 Title    Chemilumineszenz der S02-Oxidation Chemiluminescence of SO2-Oxidation  
 Abstract    The reactions of diluted aqueous solutions of SO2 resp. HSO3-ions with MJ1O4-or Ce 4+ ions in the pH range 1-4 produce chemiluminescence in the spectral region of 450-600 nm. Measurements of the time course of the light emission and their simulation on an analog computer led to a reaction scheme in which a recombination product of primarily formed HSO3 radicals -of a lifetime of about 1 second -appears as precursor of electronically excited SO2 molecules. The participation of singlet oxygen can be excluded because at least the reaction with Ce 4+ ions proceeds also in the absence of oxygen. 
  Reference    Z. Naturforsch. 33b, 293—299 (1978); eingegangen am 30. September/12. Dezember 1977 
  Published    1978 
  Keywords    Sulfur Dioxide, Oxidation, Chemiluminescence, Reaction Kinetics, Analysis 
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 TEI-XML for    default:Reihe_B/33/ZNB-1978-33b-0293.pdf 
 Identifier    ZNB-1978-33b-0293 
 Volume    33 
2Author    Cornelia Neidl, Joachim StauffRequires cookie*
 Title    Spectra and Decay Kinetics of Diadamantyl-Dioxetane Chemiluminescence  
 Abstract    The thermal decomposition of 1,2-diadamantyldioxetane was studied by kinetic and spectroscopic methods. Spectra of the chemiluminescence emitted during the thermally induced decomposition of 1,2-diadamantyldioxetane, tetramethyldioxetane and tri-methyldioxetane were obtained and the influence of quenchers and radical-scavengers, and the presence of "heavy atoms" in the surrounding of the emitting species was investigated. The kinetics of the decay mechanism was followed by measuring the time dependence of the chemiluminescence. The influence of radical-scavengers, quenchers and "external heavy atoms" on the kinetics was assessed. Experimental results were discussed in terms of a biradical decay mechanism. 
  Reference    Z. Naturforsch. 33b, 763—769 (1978); received January 26 1978 
  Published    1978 
  Keywords    Chemiluminescence, Dioxetanes, Reaction Kinetics, Spectra, Biradicals 
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 TEI-XML for    default:Reihe_B/33/ZNB-1978-33b-0763.pdf 
 Identifier    ZNB-1978-33b-0763 
 Volume    33