✦ LIBER ✦

Picosecond absorption studies on the role of charge transfer interactions in the mechanism of quenching of triplet states by molecular oxygen

✍ Scribed by D.J. McGarvey; F. Wilkinson; D.R. Worrall; J. Hobley; W. Shaikh

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 584 KB
Volume: 202
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(93)90043-z

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Quenching of triplet states by molecular

Quenching of triplet states by molecular oxygen and the role of charge-transfer interactions

✍ A. Garner; F. Wilkinson 📂 Article 📅 1977 🏛 Elsevier Science 🌐 English ⚖ 318 KB

The rate constants for oxygen quenching in benzene solution of the triplet states of several organic compounds with relatively high triplet energies have been measured in laser photolye> ar,.l pulse radiolysis experiments. The previously obscrvcd trend for aromatic hydrocarbons where the quenching r

Triplet state formation in the quenching

Triplet state formation in the quenching of fluorescence by molecular oxygen

✍ R. Potashnik; C.R. Goldschmidt; M. Ottolenghi 📂 Article 📅 1971 🏛 Elsevier Science 🌐 English ⚖ 229 KB

pulsed nitrogen laser is appiied for studying the quenching of aromatic hydrocarbons fluorescence by oxygen. In non-polar solvents the process induces intersystem crossing to the triplet state with a quantum yield of unity. Effects of solvent polarity suggest that the interaction between Sl and O2(

Charge transfer complexing in the course

Charge transfer complexing in the course of triplet state quenching of carbocyanine dyes by nitroxyl radical

✍ V.A. Kuzmin; A.S. Tatikolov; Yu.E. Borisevich 📂 Article 📅 1978 🏛 Elsevier Science 🌐 English ⚖ 359 KB

Quenching of triplet states of carbocyanine dyes by nitroxyl radical has been investigated by the f&b pliotolysis method. Quenching of triplet state carbocyanine dyes with one po~yme#yne chain occurs via enhanced intersystem crossing on exchanse interaction with the radicaf, Quencbiog of tri&t state

A flash photolysis study of the triplet

A flash photolysis study of the triplet state quenching of anthracene by oxygen in the presence of polystyrene

✍ Göran Rämme; Jan F. Rabek 📂 Article 📅 1977 🏛 Elsevier Science 🌐 English ⚖ 256 KB

The rate constant for the quenching of triplet anthracene by molecular oxygen in the presence or absence of polystyrene was measured. The quenching ability is not affected by the presence of polymer.

Solvent effect on 1O2 yield and the mech

Solvent effect on 1O2 yield and the mechanism of polycyclic hydrocarbon triplet-state quenching by oxygen

✍ A.P. Darmanyan 📂 Article 📅 1983 🏛 Elsevier Science 🌐 English ⚖ 604 KB

The yield of singlet oxygen (@lo, ) in quenching of the triplets of 1.2.5.6dibenzanthracene. 1,2-benznnthncene. authracene. pyranthrene and duroquinone by oxygen has been studied using the laser photolysis technique. It ~3s found that in toluene @to2 = 1.0 + 0.1 and the quenching occurs via the ener

Intramolecular 2pπ* → 3dπ charge transfe

Intramolecular 2pπ* → 3dπ charge transfer in the excited state of phenyldisilane studied by picosecond and nanosecond laser spectroscopy

✍ Haruo Shizuka; Katsuhiko Okazaki; Masayuki Tanaka; Mitsuo Ishikawa; Minoru Sumit 📂 Article 📅 1985 🏛 Elsevier Science 🌐 English ⚖ 366 KB

In~mol~~ 2pn\* + 3dn charge transfer in the excited state of phenyl~e occurs very rapidly (<IO ps) both in ?&Fat 293 K and in EPA glass at 77 K. At room temperature a Iong;lived 425 nm transient (which is assgned to a reananged intermediate) is produced with a nse time of 30 ps, showing that the tra