Molecular Recognition Using Cyanine-α-Helical Poly(L-Lysine) Complexes in Methanol

Cyanine dyes bound to α-helical poly(L-lysine·HBr) (PLL·HBr) in methanol provide extremely strong exciton couplings in CD spectra caused by their R-chiral dimer formation and that dyes-PLL complexes show varying degrees of remarkable strength change in the CD recognizing on their methylene numbers upon addition of α,ω-diaminoalkanes.