Ontology highlight
ABSTRACT:
SUBMITTER: Hu Y
PROVIDER: S-EPMC6696512 | biostudies-literature | 2019 Aug
REPOSITORIES: biostudies-literature
Hu Yunbin Y Paternò Giuseppe M GM Wang Xiao-Ye XY Wang Xin-Chang XC Guizzardi Michele M Chen Qiang Q Schollmeyer Dieter D Cao Xiao-Yu XY Cerullo Giulio G Scotognella Francesco F Müllen Klaus K Narita Akimitsu A
Journal of the American Chemical Society 20190802 32
A π-extended double [7]carbohelicene <b>2</b> with fused pyrene units was synthesized, revealing considerable intra- and intermolecular π-π interactions as confirmed with X-ray crystallography. As compared to the previous double [7]carbohelicene <b>1</b>, the π-extended homologue <b>2</b> demonstrated considerably red-shifted absorption with an onset at 645 nm (<b>1</b>: 550 nm) corresponding to a smaller optical gap of 1.90 eV (<b>1</b>: 2.25 eV). A broad near-infrared emission from 600 to 900 ...[more]