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Are the Bio- and Chemiluminescence States of the Firefly Oxyluciferin the Same as the Fluorescence State?
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Theoretical Chemistry.
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2013 (English)In: Photochemistry and Photobiology, ISSN 0031-8655, E-ISSN 1751-1097, Vol. 89, no 2, 319-325 p.Article in journal (Refereed) Published
Abstract [en]

A usual strategy in both experimental and theoretical studies on bio- and chemiluminescence is to analyze the fluorescent properties of the bio- and chemiluminescence reaction product. Recent findings in a coelenteramide and Cypridina oxyluciferin model arise a concern on the validity of this procedure, showing that the light emitters in each of these luminescent processes might differ. Here, the thermal decomposition path of the firefly dioxetanone and the light emission states of the Firefly oxyluciferin responsible for the bio-, chemiluminescence, and fluorescence of the molecule are characterized using ab initio quantum chemistry and hybrid quantum chemistry/molecular mechanics methods to determine if the scenario found in the coelenteramide and Cypridina oxyluciferin study does also apply to the Firefly bioluminescent systems. The results point out to a unique emission state in the bio-, chemiluminescence, and fluorescence phenomena of the Firefly oxyluciferin and, therefore, using fluorescence properties of this system is reasonable.

Place, publisher, year, edition, pages
2013. Vol. 89, no 2, 319-325 p.
National Category
Theoretical Chemistry
URN: urn:nbn:se:uu:diva-185545DOI: 10.1111/php.12007ISI: 000315644100008OAI: oai:DiVA.org:uu-185545DiVA: diva2:572045
Available from: 2012-11-26 Created: 2012-11-26 Last updated: 2015-01-08Bibliographically approved

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Publisher's full texthttp://dx.doi.org/10.1111/php.12007

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