𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Quenching of the fluorescence of arenes and heteroarenes in the formation of charge-transfer complexes in the excited state

✍ Scribed by J. Bendig; B. Geppert; S. Helm; D. Kreysig

Book ID
112457967
Publisher
Springer
Year
1978
Tongue
English
Weight
520 KB
Volume
14
Category
Article
ISSN
0040-5760

No coin nor oath required. For personal study only.

πŸ“œ SIMILAR VOLUMES

Deactivation behaviour of arenes and het
Deactivation behaviour of arenes and heteroarenes. VI. quenching of the fluorescence of heteroarenium cations at high concentrations
✍ JΓΌrgen Bendig; Bernd Geppert; Siegrun Helm; Dieter Kreysig πŸ“‚ Article πŸ“… 1978 πŸ› Elsevier Science βš– 498 KB

At high concentrations of acridizinium and N-methylacridinium salts in methanol (virtually complete dissociation) a differentiated quenching of fluorescence occurs, since a cation-cation and a cation-anion interaction exist in the excited state. The extent of the fluorescence quenching due to cation

External heavy atom quenching of the flu
External heavy atom quenching of the fluorescence of the acridizinium ion via charge-transfer complexes
✍ J. Bendig; S. Helm; D. Kreysig πŸ“‚ Article πŸ“… 1978 πŸ› Elsevier Science 🌐 English βš– 175 KB

The rate constants of fluorescence quenching of the acridizimum ion by alkyl bromides and iodides are determined by the donor behaviour (ionization potectial) of the quenchers. An encounter-CT complex is postulated, in which the quencher acts as an electron donor.

Delayed charge-transfer fluorescence of
Delayed charge-transfer fluorescence of the tetracyanobenzene-biphenyl complex in the crystalline state
✍ M. Yagi; S. Nagakura; H. Hayashi πŸ“‚ Article πŸ“… 1973 πŸ› Elsevier Science 🌐 English βš– 311 KB

Intermolcsular charge-trnnsfer phosphorescence and fluorescence were observed for the biphenyl single crystal containing 1, 2,4,5tetracyanobenzcne as a guest. In addition, the delayed cliarge-transfer fluorescence due to triplcttrip!et annihilation wns observed for the first time.