Using microwave induced delayed phosphorescence techniques we determined the populating and depopulating rate txnshnts for the indivldnat spin-sublevels of tile phosphorescent states of tetracyanobenzene (TCNB) and its ebargetransfer complexes with besrene and hesamethyibenzene (H&13) in n-hexane at
The lowest triplet state of toluene by microwave induced delayed phosphorescence
โ Scribed by Ph.J. Vergragt; J.H. van der Waals
- Publisher
- Elsevier Science
- Year
- 1974
- Tongue
- English
- Weight
- 606 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
โฆ Synopsis
The zero-field splitting parameters of the lowest triplet state of toluene in a benzene crystal have been measured: D = 0.146, IEI = 0.0463 cm-l. The relative contributions of the three spin levels to the radiative decay in four vibronic bands have been determined. The results indicate that the axes of the zfs tensor are not coincident with the symmetry axes of the molecule.
๐ SIMILAR VOLUMES
The microwave-induced delayed phosphorescence (MIDP) resignal. Kinetic information is obtained by analyzing the MIDP sponses of several molecules in their excited triplet state are anaresponses as t is varied in a series of measurements. lyzed globally by least-squares minimization of the residuals,
It is shown that the microwave induced delayed phosphorescence technique can be developed into a very general method. It is possible to measure not only decay rates of the individual spin components of ohosohorescent triplet states as shown in a previous paper. but also the relative radiative decay
The vibronk interactions involved in the phosPhorescent triPlet state of p-chlorg&niline m p-x$ene have been studied by the method of microwave induced delayed phosphores~nce. It is shown that vibrations of bi symmetry : appear strongly in the emission from the Tr sublevel. l%is unusual appearance o
Phosphorescence-microwave double resonance (PMDR) techniques are wed and the zero-field (zf) origin of the 0,O band of the phosphorescence of benzene-& in benzene-& a.t 1.6% is determined to be the TY level. This is cuns;tent with a 3B1u assignment for a distorted D2h benzene in its triplet state an