SOLVATOCHROMISM OF THE FREE BASE CORROLES

For two free base corroles with different architecture of peripheral substitution, the solvatochromic shifts absorption bands in a series solvents nature are herein determined, and effects is analyzed by Valentine method. It found that solvatochromism bases originates due to universal nonspecific interactions, short-wavelength T2 tautomer experiences stronger solvation. shown polar aprotic (acetone, acetonitrile, dimethylformamide,
 dimethylsulfoxide), specific acid-base interactions occur simultaneously, leading formation deprotonated form. both protonated forms also show solvation, shifts, magnitude which exceeds for corroles. proposed this feature an excess (negative or positive) electronic charge macrocycle.