Ontology highlight
ABSTRACT:
SUBMITTER: Delgado IH
PROVIDER: S-EPMC5772034 | biostudies-literature | 2016 Jul
REPOSITORIES: biostudies-literature
Chemical science 20160408 7
Unprecedented regioselective post-functionalization of racemic and enantiopure cationic diaza [4]helicenes is afforded. The peripheral auxochrome substituents allow a general tuning of the electrochemical, photophysical and chiroptical properties of the helical dyes (26 examples). For instance, electronic absorption and circular dichroism are modulated from the orange to near-infrared spectral range (575-750 nm), fluorescence quantum efficiency is enhanced up to 0.55 (631 nm) and circularly pola ...[more]