pH-sensitive exciton chirality chromophore. Solvatochromic effects on circular dichroism spectra
Diesters (1 and 3) of (1S,2S) and (1R,2R)-cyclohexanediol and diamides (2 and 4) of (1S,2S) and (1R,2R)-diaminocyclohexane with p-hydroxycinnamic and exhibit intense bisignate circular dichroism spectra in CH3OH: 1 Δε+55 (323 nm), -34 (287 nm);