It is shown that the spm-spin and spin-lattice relaxation rates in the lowest triplet state of aniline in a p-xylene host crystal are determmed by the presence of a close-lying local phonon state. It is concluded that the motion of the aniline molecule has a highly localised character.
Determination of the individual spin-lattice relaxation rates between the spin levels of phosphorescent triplet-state molecules
β Scribed by H.M. Van Noort; B. Wirnitzer; J. Schmidt
- Book ID
- 107733019
- Publisher
- Elsevier Science
- Year
- 1982
- Tongue
- English
- Weight
- 430 KB
- Volume
- 85
- Category
- Article
- ISSN
- 0009-2614
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π SIMILAR VOLUMES
The three spin-lattice relaxation rates for the triplet state of ncridine in zerc-field have been determined in a biphenyl host from 1.7-3.2 K. The mean relaxation rate for the triplet state of phcnanthrene was determined in a biphenyl host from 1.3-13 K Two conclusions of a more general nature emer
for the triplet state of quinosdinc in durene and in pcrdeuterated naphthalene (Na'a) with the pulse uturation method. In the N-da host crystai rhe anisotropy is identical for both molecular orientations A and B.
Spin-lattice relaxation rates in the Tt triplet state of 9,lOanthraquinone dissolved in n-heptane and isooctane are measured in the temperature region 1.9 to 30 K using an excitation of phosphorescence by short flashes. The relaxation rates are determined from the tri-evponential decay curves measur