BINOL-like atropisomeric chiral nanographene.

ABSTRACT: Interest in making chiral polycyclic aromatic hydrocarbons (PAHs) or nanographenes (NGs) has greatly increased recently. To date, a majority of chiral nanocarbons have been designed based on helical chirality. Here, we describe a novel atropisomeric chiral oxa-NG 1 by the selective dimerization of naphthalene-containing, hexa-peri-hexabenzocoronene (HBC)-based PAH 6. The photophysical properties of the oxa-NG 1 and monomer 6 were investigated, including UV-vis absorption (λ _max = 358 nm for 1 and 6), fluorescence emission (λ _em = 475 nm for 1 and 6), fluorescence decay (15 vs. 16 ns), and fluorescence quantum yield, and it was found that the photophysical properties of the monomer are nearly maintained in the NG dimer due to its perpendicul

SUBMITTER: Li S 

PROVIDER: S-EPMC10033938 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature