Polyethylene as a medium for eliminating the solvent perturbation in intramolecular proton transfer systems

✍ Scribed by Andrzej Mordziński

• Book ID: 103025521
• Publisher: Elsevier Science
• Year: 1988
• Tongue: English
• Weight: 374 KB
• Volume: 150
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(88)80037-x

✦ Synopsis

Polyethylene was utilized as a suitable medium for proton transfer systems. A low-temperature fluorescence study of 3-hydroxyflavone was used as a probe of the quality of polyethylene. It was found that perturbations due to H-bonded impurities are largely suppressed in the polymer matrix as compared with other media. As an example we reinvestigated the phenomenon of dual fluorescence of 2,5-bis-( 2-benzoxazolyl)-4-methoxyphenol. In this particular proton-transfer system, the intrinsic character of the energy barrier for excited-state proton transfer was confirmed.