| Title |
Chalcogen-influenced benzochalcogenazolo-based N,O-coordinated difluoroboron complexes: from lasing dyes to room-temperature-phosphorescence emitters |
| Authors |
Kutsiy, Stepan ; Pytlarz, Radosław ; Hotynchan, Andrii ; Marek-Urban, Paulina H ; Luboradzki, Roman ; Jean-Woldemar, Enzo ; Volyniuk, Dmytro ; Chénais, Sébastien ; Forget, Sébastien ; Durka, Krzysztof ; Grazulevicius, Juozas V ; Potopnyk, Mykhaylo A |
| DOI |
10.1021/acs.inorgchem.5c02557 |
| Full Text |
|
| Is Part of |
Inorganic chemistry.. Washington, DC : American Chemical Society. 2025, vol. 64, iss. 28, p. 14704-14716.. ISSN 0020-1669. eISSN 1520-510X |
| Abstract [eng] |
Four N,O-coordinated benzochalcogenazolo-based boron difluoride complexes were designed, synthesized, and spectroscopically investigated in solutions, crystalline state, and dye-doped poly(methyl methacrylate) films. The single crystal analysis revealed that oxadiazaborinine dyes adopt planar geometry with multiple intermolecular hydrogen-bonding interactions. The benzoxazole- and benzothiazole-containing dyes exhibit highly intensive photoluminescence in the crystalline state and when dispersed in the inert polymer, accompanied by high-rate constants of radiative deactivation (2.2 × 108 s-1 and 2.7 × 108 s-1, respectively). This results in their amplified spontaneous emission ability with very low thresholds of 11 and 4.7 μJ/cm2, respectively, and very narrow bandwidths with the values of full widths at half maxima of 10 and 6.3 nm. In stark contrast, the benzotellurium-containing analogue shows room temperature phosphorescence with a short phosphorescence lifetime of 9.4 μs, caused by the strong chalcogen heavy-atom effect. |
| Published |
Washington, DC : American Chemical Society |
| Type |
Journal article |
| Language |
English |
| Publication date |
2025 |
| CC license |
|
