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The photoisomerization of the merocyanine dyes, 5-[2-(3-ethyl-2-benzothiazolylidene)-1-methyl-ethylidene]-3-ethyl-2-thioxo-4 -thiazolidinone (Et(Me)MD) and 5-[2-(3-ethyl-2-benzothiazolylidene)ethylidene]-3-ethyl-2-thioxo-4-thiazolid inone (EtMD), in solution was studied by visible absorption, resonance Raman and IR spectroscopies. It was found that the most stable conformers for Et(Me)MD and EtMD...
Resonance Raman spectra have been obtained for Spinacea oleracea, Phytolacca americana and Halobacterium halobium ferrodoxins. These spectra were very similar to each other in terms of both vibrational frequencies and relative intensities, strongly suggesting that their molecular structures of active centers are very similar. The resonance Raman spectra were, however, fairly different in the frequencies...
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