Boosting anion sensing of O/S-bridged biscarbazole–triarylboron sensors <i>via</i> charge-transfer inhibition and the heavy-atom effect
By combining O/S-bridged biscarbazole donors with a triarylboron acceptor, two donor-acceptor type F<sup>-</sup> sensors, O-2B and S-2B, are developed. B-F<sup>-</sup> coordination inhibits the strong charge-transfer effect, causing fluorescence changes. Owing to a larger energy gap, smaller oscillator strength and heavy-atom effect, S-2B exhibits greater fluorescence quenching and a lower F<sup>-</sup> detection limit of 5.93 × 10<sup>-8</sup> M than that of O-2B, demonstrating a superior sensing ability.
Authors
- Qingmei Ge (ORCID: https://orcid.org/0000-0002-4918-4176)
- Wenfeng Zhao (ORCID: https://orcid.org/0009-0007-2093-6892)
- Jiang Zhao (ORCID: https://orcid.org/0000-0002-4609-0852)
- Xiao Long (ORCID: https://orcid.org/0000-0002-3619-1318)
- Chunliang Yang
- Chenghui Wang (ORCID: https://orcid.org/0000-0002-3647-7754)
- Nan Jiang (ORCID: https://orcid.org/0000-0002-1130-4478)
Institutions
- Guizhou University (CN)
- Guizhou Minzu University (CN)
Publication Details
- Journal
- Chemical Communications
- Published
- 2025-12-09
- DOI
- https://doi.org/10.1039/d5cc06234a
- Primary Topic
- Molecular Sensors and Ion Detection
- Type
- article
- Field-Weighted Citation Impact
- 0.00