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Spin properties of paramagnetic centers generated under irradiation of crystalline complexes of C60 with triphenylamineстатья
- Авторы: Denisov N.N., Krinichnyi V.I., Nadtochenko V.A.
- Журнал: Chemical Physics Reports
- Том: 17
- Номер: 8
- Год издания: 1998
- Первая страница: 1405
- Последняя страница: 1415
- Аннотация: EPR spectra of paramagnetic centers formed in crystals of C60 complexes with triphenylamine exposed to visible light are recorded in three-centimeter and two-millimeter spectral ranges. Convincing evidence for the existence of two kinds of paramagnetic centers with different relaxation and dynamic parameters is gained. Rotation of C60 molecules in C60/triphenylamine crystals at low temperatures is an activated process accelerating dramatically upon phase transition. This transition is accompanied by changes in electron relaxation and paramagnetic susceptibility of the system. Rotation frequency of the molecules depends on the size of a unit cell of the complex and on the triphenylamine conformation.
- Добавил в систему: Криничный Виктор Иванович