A singk exponential risetime is observed for the tautomcr fluoresccncc of 3-hydroxyflavom in the absence of hydrogcnbonding impuriticsin the temperature range of 298-77 K. The observed risetime in hydrocarbon solvents is Its than 8 ps at 298 K. while at 77 K it is 37 2 6 ps. The disucpnncy with othe
Dynamics of Intermolecular Hydrogen Bonds in the Excited States of 4‘-Dialkylamino-3-hydroxyflavones. On the Pathway to an Ideal Fluorescent Hydrogen Bonding Sensor
✍ Scribed by Shynkar, Vasyl V.; Klymchenko, Andrey S.; Piémont, Etienne; Demchenko, Alexander P.; Mély, Yves
- Book ID
- 120064462
- Publisher
- American Chemical Society
- Year
- 2004
- Tongue
- English
- Weight
- 141 KB
- Volume
- 108
- Category
- Article
- ISSN
- 1089-5639
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
## Abstract The time‐dependent density functional theory (TDDFT) method has been carried out to investigate the excited‐state hydrogen‐bonding dynamics of 4‐aminophthalimide (4AP) in hydrogen‐donating water solvent. The infrared spectra of the hydrogen‐bonded solute−solvent complexes in electronica
The absorption and fluorescence spectra of 2-[4-(dimethylamino)phenyl]-3-hydroxy-4H-chromene-4-one in benzene or toluene and in the presence of methanol (proton donor) or the highly polar dimethylsulfoxide (proton acceptor) were measured and analyzed from the point of view of the potential influence