Molecular luminescence studies of flavins. I. The excited states of flavins

Ming Sun, Thomas A Moore, Pill Soon Song

Research output: Contribution to journalArticle

232 Citations (Scopus)

Abstract

The lowest excited singlet and triplet states of flavins have been investigated by means of luminescence polarization (photoselection) and P-P-P SCF-MO CI methods. The fluorescent and phosphorescent states of flavins of varying structures such as isoalloxazines (e.g., riboflavin), alloxazines (e.g., lumichrome), and lumazines (e.g., 6,7,8-trimethyllumazine) have been assigned (π,π*) symmetry. However, the (n,π*) states have been found to play a significant role in the luminescence processes of flavins, particularly of alloxazines. Attempts have been made to characterize various electronic transitions of flavins in the visible and near-uv regions of the absorption spectra, and to reconcile diverse spectroscopic data reported in the literature.

Original languageEnglish
Pages (from-to)1730-1740
Number of pages11
JournalJournal of the American Chemical Society
Volume94
Issue number5
Publication statusPublished - 1972

Fingerprint

Flavins
Luminescence
Excited states
Absorption spectra
Polarization
Riboflavin
isoalloxazine

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Molecular luminescence studies of flavins. I. The excited states of flavins. / Sun, Ming; Moore, Thomas A; Song, Pill Soon.

In: Journal of the American Chemical Society, Vol. 94, No. 5, 1972, p. 1730-1740.

Research output: Contribution to journalArticle

@article{563b2696ac62425cacad94afdb98b76c,
title = "Molecular luminescence studies of flavins. I. The excited states of flavins",
abstract = "The lowest excited singlet and triplet states of flavins have been investigated by means of luminescence polarization (photoselection) and P-P-P SCF-MO CI methods. The fluorescent and phosphorescent states of flavins of varying structures such as isoalloxazines (e.g., riboflavin), alloxazines (e.g., lumichrome), and lumazines (e.g., 6,7,8-trimethyllumazine) have been assigned (π,π*) symmetry. However, the (n,π*) states have been found to play a significant role in the luminescence processes of flavins, particularly of alloxazines. Attempts have been made to characterize various electronic transitions of flavins in the visible and near-uv regions of the absorption spectra, and to reconcile diverse spectroscopic data reported in the literature.",
author = "Ming Sun and Moore, {Thomas A} and Song, {Pill Soon}",
year = "1972",
language = "English",
volume = "94",
pages = "1730--1740",
journal = "Journal of the American Chemical Society",
issn = "0002-7863",
publisher = "American Chemical Society",
number = "5",

}

TY - JOUR

T1 - Molecular luminescence studies of flavins. I. The excited states of flavins

AU - Sun, Ming

AU - Moore, Thomas A

AU - Song, Pill Soon

PY - 1972

Y1 - 1972

N2 - The lowest excited singlet and triplet states of flavins have been investigated by means of luminescence polarization (photoselection) and P-P-P SCF-MO CI methods. The fluorescent and phosphorescent states of flavins of varying structures such as isoalloxazines (e.g., riboflavin), alloxazines (e.g., lumichrome), and lumazines (e.g., 6,7,8-trimethyllumazine) have been assigned (π,π*) symmetry. However, the (n,π*) states have been found to play a significant role in the luminescence processes of flavins, particularly of alloxazines. Attempts have been made to characterize various electronic transitions of flavins in the visible and near-uv regions of the absorption spectra, and to reconcile diverse spectroscopic data reported in the literature.

AB - The lowest excited singlet and triplet states of flavins have been investigated by means of luminescence polarization (photoselection) and P-P-P SCF-MO CI methods. The fluorescent and phosphorescent states of flavins of varying structures such as isoalloxazines (e.g., riboflavin), alloxazines (e.g., lumichrome), and lumazines (e.g., 6,7,8-trimethyllumazine) have been assigned (π,π*) symmetry. However, the (n,π*) states have been found to play a significant role in the luminescence processes of flavins, particularly of alloxazines. Attempts have been made to characterize various electronic transitions of flavins in the visible and near-uv regions of the absorption spectra, and to reconcile diverse spectroscopic data reported in the literature.

UR - http://www.scopus.com/inward/record.url?scp=0015497790&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0015497790&partnerID=8YFLogxK

M3 - Article

VL - 94

SP - 1730

EP - 1740

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

SN - 0002-7863

IS - 5

ER -