Fluorescence from the second excited singlet state of 3-hydroxyflavone in super...

• Author(s): Chattopadhyay, Nitin ; Barroso, Mónica ; Serpa, Carlos ; Arnaut, Luís G. ; Formosinho, Sebastião J.
• Date: 2004
• Persistent ID: http://hdl.handle.net/10316/5140
• Origin: Estudo Geral - Universidade de Coimbra
• Document Type: Article
• Language: English

Description

Fluorescence from the second excited singlet state (S2) of 3-hydroxyflavone (3HF) has been observed for the first time in supercritical carbon dioxide (sc-CO2) environment. Steady-state experiments reveal that the intramolecular proton transfer is less effective from the S2 state of 3HF compared to that from the S1 state. http://www.sciencedirect.com/science/article/B6TFN-4BVP7G9-5/1/fe6fe6a663b47e1a622241a93ef55a87