TY  - JOUR
AU  - Tian, Xiaoqi
AU  - Shoyama, Kazutaka
AU  - Mahlmeister, Bernhard
AU  - Brust, Felix
AU  - Stolte, Matthias
AU  - Wuerthner, Frank
TI  - Naphthalimide-Annulated [ n ]Helicenes: Red Circularly Polarized Light Emitters
JO  - Journal of the American Chemical Society
VL  - 145
IS  - 17
SN  - 0002-7863
CY  - Washington, DC
PB  - ACS Publications
M1  - PUBDB-2023-05265
SP  - 9886 - 9894
PY  - 2023
N1  - DFG Grant WU 317/20-2, DFG Projektnummer 444286426  
AB  - Two [n]heliceno-bis(naphthalimides) 1 and 2 (n = 5 and 6, respectively) where two electron-accepting naphthalimide moieties are attached at both ends of helicene core were synthesized by effective two-step strategy, and their enantiomers could be resolved by chiral stationary-phase high-performance liquid chromatography (HPLC). The single-crystal X-ray diffraction analysis of enantiopure fractions of 1 and 2 confirmed their helical structure, and together with experimental and calculated circular dichroism (CD) spectra, the absolute configuration was unambiguously assigned. Both 1 and 2 exhibit high molar extinction coefficients for the S<sub>0</sub>–S<sub>1</sub> transition and high fluorescence quantum yields (73
LB  - PUB:(DE-HGF)16
C6  - 37083394
UR  - <Go to ISI:>//WOS:000981137300001
DO  - DOI:10.1021/jacs.3c03441
UR  - https://bib-pubdb1.desy.de/record/593081
ER  -