Fluorescent PET (photoinduced electron transfer) indicators for solvent polarity with quasi-step functional response
✍ Scribed by Richard A. Bissell; A.Prasanna de Silva; W. Thilak; M.L. Fernando; Suram T. Patuwathavithana; T.K. Shantha; D. Samarasinghe
- Book ID
- 104225419
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- French
- Weight
- 304 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
✦ Synopsis
The family of alkylaminomethylanthracenes
(1) display solvent independent electronic spectral parameters except for the fluorescence quantum yield which gives a sharp sigmoidal response to solvent polarity.The latter can he analyzed according to a linear free energy relationship. Photophysical studies of aromatic hydrocarbon-amine systems have demonstrated solvent polarii,y dependent photoinduced electron transfer (PET) and exciplex emission. 1 Exciplex emission is largely suppresF(:d by a) the presence of two aliphatic amine units2, b) the restricted geometric relationship of hydrocarbon and amine in intramolecular situations caused by a single methylene spacer3, and (c) the presence of N-H bonds.4 We now