PMID: 2115916May 1, 1990Paper

Phosphorescence of nucleic acids and DNA components at 77 K

Journal of Photochemistry and Photobiology. B, Biology
H Görner

Abstract

The emission spectra of nucleic acids, pyrimidine and purine nucleotides, nucleosides and bases and a series of pyrimidine derivatives were obtained using UV light excitation in glasses (ethanol and 2:1 mixtures of ethylene glycol and water (EG-H2O); also partly in butyronitrile and 2-methyltetrahydrofuran) at 77 K. The quantum yields of fluorescence phi f and phosphorescence phi p of some 30 compounds are presented; for several substituted uracils they are reported for the first time. The values cover a range from phi f = 0.0002 and phi p = 0.001 for uracil in ethanol to phi f = 0.50 for guanosine in acidic ethanol and phi p = 0.095 for guanosine-5'-monophosphate in EG-H2O (pH 6-7). The phosphorescence lifetime tau p at 77 K ranges from about 0.3 s (uracil moiety) to 3 s (adenine moiety). The measured tau p, phi f and phi p values are compared with those available in the literature.

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Citations

May 12, 2011·The Journal of Physical Chemistry. a·Chunfan YangHongmei Su
Jun 20, 2006·Journal of Biomolecular Structure & Dynamics·A A GhazaryanT V Chalikian
Dec 1, 1990·Photochemistry and Photobiology·D Schulte-FrohlindeH Görner
Oct 7, 2016·Faraday Discussions·Katharina RöttgerAndrew J Orr-Ewing
Mar 27, 2013·Photochemical & Photobiological Sciences : Official Journal of the European Photochemistry Association and the European Society for Photobiology·Christian ReichardtCarlos E Crespo-Hernández
Mar 29, 2019·Chemistry : a European Journal·Paula MiroM Luisa Marin
May 28, 2020·ChemPlusChem·Yunzhong WangWang Zhang Yuan
Feb 21, 2018·Physical Chemistry Chemical Physics : PCCP·Ana Julieta PepinoMarco Garavelli
Nov 1, 1994·Journal of Photochemistry and Photobiology. B, Biology·H Görner
Jul 13, 2010·Journal of Chemical Theory and Computation·Remedios González-LuqueLuis Serrano-Andrés
Feb 11, 2005·Journal of the American Chemical Society·Manuela MerchánLluís Blancafort

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