The results of polarized Stark effect absorption esperimcnts on the lower triplet states ofp-benzoquinone (PBQ)-h4 and -dq in single crystals at 1.8"K are reported. These measurements give strong support for the assignment of the lowest triplet state as triplet 3B transition at 18602.8 cm-' ,g (nn\*
Stark effects on the lowest 1B1g(nπ*) state of p-benzoquinone
✍ Scribed by Hendrik Veenvliet; Douwe A. Wiersma
- Publisher
- Elsevier Science
- Year
- 1973
- Tongue
- English
- Weight
- 519 KB
- Volume
- 2
- Category
- Article
- ISSN
- 0301-0104
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📜 SIMILAR VOLUMES
Optically detected magnetic resonance (ODMR) techniques are used to determine the orbital asQnment of the phosphorescent triplet state of p-benzoquinone in the condensed phase. The principal spin-orbit coupl% routes are discussed in terms of the observed spin-vibronic activity.
Stark effects bn the phosphorescence spectra of p-benzoquinone have been studied ;n nnphtbalcne crystals at temperatures between 1.7 and 30 K. The exDerimenta1 data establish that \*be band spiitting of 24 cm-t arises from a double mini-\* mum potential in the Tr state.
The lowest singlet state of &riazine is characterized as 'E" arising fro? k' -+ err promotion (II+ IC\*). The state has angular morn&turn corresponding tog = 0.24. The state is also subject to a fkst+nier Stark effect (a = 0.53D) due to electric field induced interactions of 2s and 2p eIectrons. we