Please use this identifier to cite or link to this item: http://dx.doi.org/10.18419/opus-5041
Authors: Gückel, Friedemann
Maki, August H.
Neugebauer, Franz A.
Schweitzer, Dieter
Vogler, Helmut
Title: Spectroscopic investigations of the lowest triplet state of s-tetrazines
Issue Date: 1992
metadata.ubs.publikation.typ: Zeitschriftenartikel
metadata.ubs.publikation.source: Chemical physics 164 (1992), S. 217-227. URL http://dx.doi.org./10.1016/0301-0104(92)87146-Z
URI: http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-65583
http://elib.uni-stuttgart.de/handle/11682/5058
http://dx.doi.org/10.18419/opus-5041
Abstract: We report on the electronic and triplet state ODMR spectroscopy of s-tetrazine, 3,6-dimethyl-, 3,6-dimethoxy- and 3,6-bis(methylthio)-s-tetrazines. Zero field splitting parameters were obtained by ODMR monitoring both the delayed fluorescence and the phosphorescence in neat single crystals. The S1 and T1 exciton electronic origins are reported. The zero field splitting tensor is nearly axially symmetric with |D| approximately 0.4 cm-1. This value is found to be in good agreement with calculations based on magnetic dipole-dipole coupling in a 3B3u (nπ*) state. The calculations predict a positive value for D with the major axis passing through the C atoms at the 3 and 6 positions.
Appears in Collections:08 Fakultät Mathematik und Physik

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