
%0 Journal Article
%A Bliese, M 
%A Launikonis, A 
%A Loder, JW 
%A Mau, AWH 
%A Sasse, WHF 
%T Photoreduction of deazaflavin. Spectroscopic investigations
%J Australian Journal of Chemistry
%D 1983/09/01
%V 36
%N 9
%P 1873-1883
%K 
%R https://doi.org/10.1071/CH9831873
%U https://www.publish.csiro.au/paper/CH9831873 
%X Photophysical and photochemical properties of deazaflavin (3,10-dimethylpyrimido[4,5-b]quinoline- 2,4-(3H,10H)-dione) and some of its 1,5-dihydro derivatives have been investigated. Contrary to earlier reports the photodimer of deazaflavin is non-luminescent throughout the temperature range 77-295 K. Excitation of deazaflavin in the presence of oxalate anion (acetate buffer pH 5.0) causes photodimerization with quantum efficiencies exceeding unity. A mechanism involving a triplet excimer of deazaflavin has been proposed for this reaction. 
