Unsymmetric Diazaborepin Framework with Fused 6/5/7 Ring and π-Extension to Two Bis-Diazaborepin-Embedded Isomers
An unsymmetric diazaborepin framework <b>NBNH</b> was synthesized, featuring a fused 6/5/7-ring core. Further π-extension via <i>meta</i>- and <i>para</i>-N-π-N arrangements afforded two bis-diazaborepin-embedded isomers <b><i>m</i>-dNBNH</b> and <b><i>p</i>-dNBNH</b>. The two isomers display distinct frontier molecular orbital distributions, and the <i>para</i> isomer <b><i>p</i>-dNBNH</b> exhibits a photoluminescence quantum yield of 100%. All three compounds exhibit singlet-oxygen sensitization and pronounced antiaromatic character for the diazaborepin units.
Authors
- Shan Gao (ORCID: https://orcid.org/0000-0002-5962-290X)
- Lingjuan Chen
- Jiaqi Dong
- Yirong Yuan
- Deng-Tao Yang
- Junwei Wang
Institutions
- Northwestern Polytechnical University (CN)
- Inner Mongolia University (CN)
- Photonic Science (United Kingdom) (GB)
- Advanced Energy Materials (United States) (US)
Publication Details
- Journal
- Organic Letters
- Published
- 2026-01-14
- DOI
- https://doi.org/10.1021/acs.orglett.5c05129
- Primary Topic
- Organoboron and organosilicon chemistry
- Type
- article
- Field-Weighted Citation Impact
- 0.00