Y. Teki et al., TRIPLET EXCITONS IN DIPHENYLBUTADIENE AND DIPHENYLHEXATRIENE SINGLE-CRYSTALS BY ZERO-FIELD DELAYED FLUORESCENCE ODMR, Chemical physics letters, 225(1-3), 1994, pp. 124-130
The triplet T1 states in diphenylbutadiene and diphenylhexatriene sing
le crystals have been investigated by delayed fluorescence detected ma
gnetic resonance at zero-field between 1.2 and 2.1 K and T > 30 K. The
signals are identified as being due to metastable triplet excitons an
d to X-traps. Their Absolute value of D and Absolute value of E values
are discussed with respect to delocalization of the triplet spins.