Fig. 8: Photophysical properties of 2a-c.
From: Organocatalytic enantioselective synthesis of double S-shaped quadruple helicene-like molecules

a UV/Vis spectra of 2a-c (2.0 × 10−5 M in DCM). b Fluorescence spectra of 2a-c (Excitation wavelength = 375 nm, 2.0 × 10−4 M in DCM). c Fluorescence lifetime decay curves of 2a-c. d CD spectra of 2a-c (2.0 × 10−5 M in DCM).