Spm Lttttcc reiaxdtmn times of rnetact:iblc trq&!t states in dn org:mic molcfular crystal were mcabured at hq$~ magnetic fields up to energy level splitttngs &E near the Debyc acoustx limit. By an opticai method we Sound that the drrcct-process relaxation of the r?r = +1 Zceman state is domixttcd by
Anisotropic spin lattice relaxation of triplet quinoxaline in a naphthalene host crystal at high magnetic field
β Scribed by F. Dietz; H. Port; M. Schwoerer
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- English
- Weight
- 498 KB
- Volume
- 50
- Category
- Article
- ISSN
- 0009-2614
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π SIMILAR VOLUMES
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.
We have measured the spin-lattice relaxation rates in the phosphorescent triplet state To of naphthalene in durene as a function of the &e&on of the magnetic field-The orientational dependence of the reIaxation is explained by thermal activation to a close Iying local phonon state where the spin axe