Solvent-free synthesis and chiroptical properties of a C-N axially chiral cruciform dimer of benzo[ < em > b < /em > ]phenoxazine

Chem Commun (Camb). 2024 Apr 17. doi: 10.1039/d4cc00977k. Online ahead of print.ABSTRACTA novel C-N axially chiral molecule composed of two tert-butyl-substituted benzo[b]phenoxazine (BPO) was synthesized via solvent-free reactions. The absolute configurations of the enantiomers were determined by X-ray single-crystal analysis. The enantiomers had a sufficiently high racemization barrier to ignore racemization at room temperature (149 ± 20 kJ mol-1), and the solutions exhibited dual circularly polarized emissions stemming from fluorescence and phosphorescence of |gCPL| = ca. 1 × 10-3.PMID:38629254 | DOI:10.1039/d4cc00977k

Source: Chemical Communications - April 17, 2024 Category: Chemistry Authors: Shuhei Ishikawa Daisuke Sakamaki Masayuki Gon Kazuo Tanaka Hideki Fujiwara Source Type: research