The intramolecular electronic energy transfer between two chromopliorcs separated by a methylene chain has been observed in an isolated molecule. The molecules studied are 1 \_(o-tolyl)-3-@-tolyl)propane (I) and I-(m-tolyl)-3-@-tolylk propane (II). The energy transfer rate from o-or m-xylcnc moiety
Intramolecular electronic energy transfer via exchange interaction in bichromophoric molecules
โ Scribed by Shammai Speiser; Jacob Katriel
- Publisher
- Elsevier Science
- Year
- 1983
- Tongue
- English
- Weight
- 474 KB
- Volume
- 102
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
โฆ Synopsis
Keceivcd 23 August 19S3 X theory is presented for intranlolecular electronic encgy transfer in bichromophoric molecules. Expressions are given for the donor moiety fluorescence (phosphorescence) decay and for Its fluorescence (phosphorescence) quantum yield in rerms of rhc areragc di&mce between the donor and acceptor moieties and the donor-acceptor bridge flexibility_ Comparison with available experimental data supports the predictions of the analysis.
๐ SIMILAR VOLUMES
The comment of Speiser and Rubin regarding the impossibility of long-range, intramolecular exchange energy transfer is refuted by comparison with recent data for other phenomena, e.g. electron transfer, that depend upon electronic interaction between nonconjugatively connected chromophores.
Intramolecular singlet-singlet energy transfer is reported in a series of compounds containing a 1,4-dimethoxy-naphthalene chromophore as the energy donor and a cyclic ketone as the energy acceptor connected by rigid, elongated, saturated hydrocarbon bridges with an effective length of 4,6, and 8 C-