Abstract
This work is a contribution to spectroscopic studies of indole in polar and non-polar solvents. Alcohols and paraffins have been used as solvents. Solutions have been prepared by two different methods: a) putting paraffin drops in alcoholic solutions of indole and b) adding alcohol to indole paraffin solutions. Results show that the height of the firs fluorescence maximum depends on the method through which solution was made. Solutions of the a) class show a more intense maximum than b) type at equal solvent concentration, This fact can be related with hydrogen bond formation between indole and alcohol molecules.
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