Chemiluminescence of Mn(II) complexes in oscillatory redox processes |
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Authors: | A D Karavaev A I Voloshin V P Kazakov |
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Institution: | (1) Institute of Chemistry, Bashkir Scientific Center, Academy of Sciences of the USSR, Ural Branch, Ufa |
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Abstract: | It has been shown that the red chemiluminescence (CL) in the Belousov-Zhabotinskii system with Mn(II, III) cannot be attributed to the formation of excited oxygen or its dimers during the process. Chemiluminescence has been discovered upon the reduction of Mn(III) by malonic acid, and its spectrum coincides with the spectrum of the CL in the oscillatory system (with a maximum at 680–720 nm) and is found in the same region as the photoluminescence of Mn(II),- which is known from the literature data. It has been concluded that the principal emitter of the oscillatory CL is Mn(II), which is formed in an excited state upon the reduction of Mn(III).Translated from Teoreticheskaya i Éksperimental'naya Khimiya, Vol. 25, No. 2, pp. 191–197, March–April, 1989. |
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