Protonation-induced fluorescence modulation of carbazole-based emitters
نویسندگان
چکیده
The protonation of carbazole derivatives results in the restriction intramolecular rotation, planarization molecule and relocalisation LUMO orbital increasing fluorescence quantum yield from 16% to 80%.
منابع مشابه
Aggregation induced ratiometric fluorescence change for a novel boron-based carbazole derivative.
Nanoparticles of a novel boron-based carbazole derivative have been reported. They exhibit efficient green fluorescence, aggregation induced ratiometric fluorescence change and green/blue fluorescent switching to sense VOCs.
متن کاملCarbazole as fluorescence carrier for preparation of doxycycline sensor.
Carbazole is a promising pharmaceutical species. A novel optical sensor for determining doxycycline based on the fluorescence quenching of N-allylcarbazole immobilized on an quartz glass plate surface by covalent bonding has been described. The sensor shows satisfactory virtues in reversibility, repeatability, selectivity and sufficient lifetime resulting from its excellent optode membrane. Its...
متن کاملA fluorescence study of isofagomine protonation in β-glucosidase.
N-(10-Chloro-9-anthracenemethyl)isofagomine 5 and N-(10-chloro-9-anthracenemethyl)-1-deoxynojirimycin 6 were prepared, and their inhibition of almond β-glucosidase was measured. The isofagomine derivative 5 was found to be a potent inhibitor, while the 1-deoxynojirimycin derivative 6 displayed no inhibition at the concentrations investigated. Fluorescence spectroscopy of 5 with almond β-glucosi...
متن کاملSynthesis, Fluorescence Properties of a Complex Probe Based on Hydroxyl Quantum Dots and Carbazole Abutment Styryl Fluorescence Dye
Hydroxyl CdTe/CdS core/shell structure quantum dots (QDs) were synthesized using mercaptoethanol as stabilizer in aqueous under N2. In addition, the QDs coated with carbazole abutment styryl (TCQ) fluorescence dye were synthesized in room temperature, and the fluorescence properties were studied. The results indicated that the peak shift of QDs fluorescence spectra can mainly be due to the chan...
متن کاملDNA-protected silver emitters: charge dependent switching of fluorescence.
The relationship between the state of charge and spectroscopy of DNA-protected silver emitters is not yet well understood. This remains one of the major issues to unveil in order to fully disentangle the spectroscopic features of these novel systems. It is a well known fact that a fluorescence response arises upon chemical reduction of silver cations attached to DNA, leading to neutral (or part...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Materials advances
سال: 2022
ISSN: ['2633-5409']
DOI: https://doi.org/10.1039/d1ma00438g