Modular Synthesis, Properties, and Fluoride Response of Azaborine-Based Bidentate Boron Complexes Featuring Tri- and Tetracoordinate Centers
Abstract
A family of bidentate boron complexes based on a 2,1-borazaronaphthalene scaffold, containing both tri- and tetracoordinate boron centers, were synthesized. These complexes exhibit tunable absorption–emission and solid-state fluorescence, accompanied by large Stokes shifts (4100–9200 cm –1 ) due to intramolecular charge transfer. Notably, binding of fluoride at the tricoordinate boron center triggers distinct colorimetric and fluorometric responses with a high association constant ( K a ≈ 3 × 10 4 M –1 ), which highlights their potential for fluoride detection.
Fields of Study & Subjects
Organoboron and organosilicon chemistry
Molecular Sensors and Ion Detection
Luminescence and Fluorescent Materials
Publication details
- Journal / source
- Organic Letters
- Publisher
- American Chemical Society (ACS)
- Volume
- 28
- Issue
- 18
- Pages
- 5774–5779
- Publication date
- 27 April 2026
- Language
- EN