The two-photon excited phosphorescenceof triphenyiene in PMMA matrix at 77 K was measured using a tunable flashramp-pumped rhodamine dye laser in the effective spectral region 32000-36000 cm-\*. The band origin of the So-S2 transition, which is uncertain in the one-photon absorption spectrum, was ob
โฆ LIBER โฆ
On the emission spectrum of triphenylene
โ Scribed by R. Sasson; O. Braitbart; A. Weinreb
- Publisher
- Elsevier Science
- Year
- 1988
- Tongue
- English
- Weight
- 225 KB
- Volume
- 39
- Category
- Article
- ISSN
- 0022-2313
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A comparison of the one-and tvzo-nhoton absorption spectra of triphenylene in n-heptane single crystals at 1.6 K reveals that the lowest singlet state (Sl) &of IA> symmetry while the second singlet state (S2) has 'Ai symmetry, ir. contradiction with the comrnordy accepted assignment\_