Activity of upper electron-excited states in bioluminescence of coelenterates

Тип публикации: статья из журнала (материалы конференций, опубликованные в журналах)

Конференция: European Congress on Molecular Spectroscopy; Opatija, CROATIA; Opatija, CROATIA

Год издания: 2009

Идентификатор DOI: 10.1016/j.molstruc.2008.11.014

Ключевые слова: Coelenterate bioluminescence, Upper electron-excited states, Intermolecular energy transfer, Coelenterate bioluminescence, Intermolecular energy transfer, Upper electron-excited states, Carbonyl groups, Coelenterate bioluminescence, Energy acceptors, Fluorescent aromatic compounds, Fluorescent molecules, Forster, Intermolecular energy transfer, Methoxy, Primary excitations, Sensitized fluorescences, State energies, Upper electron-excited states, Electrons, Energy transfer, Excited states, Fluorescence, Light emission, Molecules, Naphthalene, Phosphorescence, Bioluminescence, Bacteria (microorganisms), Coelenterata

Аннотация: The involvement of upper electron-excited states as the primary excited states into bioluminescence coelenterates was experimentally verified. A series of fluorescent molecules was used as foreign energy acceptors in this bioluminescent reaction. The fluorescent aromatic compounds - pyrene, 2-methoxy-naphtalene, naphthalene, and 1,4-diphenylbutadiene - were selected, with fluorescent state energies ranging from 26,700 to 32,500 cm(-1). Excitation of these molecules by Forster singlet-singlet energy transfer from S., of bioluminescence emitter and by light absorption were excluded. The weak sensitized fluorescence of three compounds was found in the course of bioluminescent reaction. Energy the upper electron-excited states of the bioluminescent emitter was located around 31,000 cm(-1). Localization of the primary excitation on a carbonyl group of coelenteramide molecule is discussed. Comparison of the primary excitation in bioluminescent processes of coelenterates and bacteria is provided. (C) 2009 Published by Elsevier B.V.

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Издание

Журнал: JOURNAL OF MOLECULAR STRUCTURE

Выпуск журнала: Vol. 924

Номера страниц: 148-152

ISSN журнала: 00222860

Место издания: AMSTERDAM

Издатель: ELSEVIER SCIENCE BV

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