Document Detail

Effect of conformation on the chemiluminescence efficiency of light-producing 2-methyl-6-(4-methoxyphenyl)imidazo[1,2-alpha]pyrazin-3(7H)-ones.
MedLine Citation:
PMID:  11754139     Owner:  NLM     Status:  MEDLINE    
Analogues of the light-producing substrate 2-methyl-6-(4-methoxyphenyl)imidazo[1,2-alpha]pyrazin-3(7H)-one, with restrictions on the dihedral angles between the pyrazine and the 4-methoxyphenyl rings, were synthesized. These compounds were used to investigate the effects of the conformation between the pyrazine and 4-methoxyphenyl rings on their chemiluminescence efficiencies in aqueous solutions. The effects of the conformation on the chemiluminescence efficiencies were clearly observed; the decrease of the dihedral angle caused a light-enhancing effect and, conversely, the increase of the angle dramatically decreased the chemiluminescence efficiency. These effects on the chemiluminescence efficiencies are attributed to the influence of the conformation on the fluorescence efficiency of the emitter.
K Teranishi
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Luminescence : the journal of biological and chemical luminescence     Volume:  16     ISSN:  1522-7235     ISO Abbreviation:  Luminescence     Publication Date:    2001 Nov-Dec
Date Detail:
Created Date:  2001-12-25     Completed Date:  2002-03-18     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  100889025     Medline TA:  Luminescence     Country:  England    
Other Details:
Languages:  eng     Pagination:  367-74     Citation Subset:  IM    
Copyright Information:
Copyright 2001 John Wiley & Sons, Ltd.
Faculty of Bioresources, Mie University, 1515 Kamihama, Tsu, Mie, 514-8507, Japan.
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MeSH Terms
Amides / chemistry
Chemiluminescent Measurements*
Chromatography, High Pressure Liquid
Imidazoles / chemistry*
Indicators and Reagents
Molecular Conformation
Pyrazines / chemistry*
Spectrometry, Fluorescence
Spectrophotometry, Ultraviolet
Reg. No./Substance:
0/Amides; 0/Imidazoles; 0/Indicators and Reagents; 0/Pyrazines; 0/Solutions

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