Photoevated rnplet stares III naphrhaknc-tetmcynnobcnzene smgle crystals were mvesclgstrdat 4.3 K by zero-field optuxdly detected magneuc resonance and at room temperature by conventIonal h&field electron pxamagncuc resonance. The low-tempenuuc cxpenmenrs revealed ;It least three mplct-state traps w
Electron paramagnetic resonance study of the photoexcited triplet states of some fluorinated naphthalenes
β Scribed by P.H.H Fischer; H Zimmermann; J Behnke
- Publisher
- Elsevier Science
- Year
- 1970
- Weight
- 523 KB
- Volume
- 3
- Category
- Article
- ISSN
- 0022-2364
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π SIMILAR VOLUMES
The temperature dependence of the triplet state splittings of naphthalene m either durene or diphenyl over 70-310 K shows that the D + E transition is coupled to a 265 cm" internal mode and D -E to both a 593 cm-' internal mode and external modes with a Debye temperature of 133 K.
## Electron spin polarization in the photoescitrd triplet state of tetraphenyl porphyrin was detected at 100Β°K using EPR technique. The zero Iield splitting parameters IDland IEI for the free base porphyrin were found to be 0.0369 ? 0.0005 and 0.0082 ? 0.0005 WI-'. respectively. ## Detection o