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Original Articles

RADICAL IONS 64.1 IONIZATION AND OXIDATION OF 1,4,5,8-TETRATHIATETRALIN

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Pages 67-77 | Received 05 Apr 1984, Published online: 13 Dec 2006
 

Abstract

1,4,5,8-Tetrathiatetralin, a structural isomer of tetrathiafulvalene, exhibits a low first ionization potential of only 7,47 eV and, therefore, can also be oxidized to a radical cation by AlCl3 in H2CCl2. The photoelectron spectrum, fan-shaped in the low energy region, and the one-line electron spin resonance spectrum are assigned and discussed based on MNDO calculations. For the structures both of the neutral molecule and of its radical cation an easy bending along the S … S axes is calculated.

1,4,5,8-Tetrathiatetralin, ein Strukturisomeres des Tetrathiafulvalens, weist eine niedrige erste Ionisierungsenergie von nur 7.47 eV auf und läßt sich daher mit AlCl3 in H2CCl2 ebenfalls zum Radikalkation oxidieren. Das im Bereich niedriger Energie aufgefächerte Photoelektronen-Spektrum und das Einlinien-Elektronenspinresonanz-Spektrum werden anhand von MNDO-Rechnungen zugeordnet und diskutiert. Für die Strukturen des Neutralmoleküls sowie seines Radikalkations wird leichte Abknickbarkeit entlang der S … S Achsen berechnet.

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