Abstract:The UV-Vis spectrum of 5-(1-butylthio)-3H-1,2-dithiole-3-thione (1a) and that of the chromium pentacarbonyl complex of 5-methyl-3H-1,2-dithiole-3-thione (3) present significant changes with the solvent polarity. The two absorption bands shown by the compounds in the region above 300 nm were identified by theoretical calculations. For Compound 1a these are n!p * and p!p * transitions and for Compound 3 the longest wavelength absorption corresponds to a charge transfer band and shows a remarkably negative solvat… Show more
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