The title compound, C(12)H(8)S(4), has crystallographic \overline{1} symmetry, the benzene groups thus being anti with respect to the plane of the four S atoms. The S-S and C-S bond lengths of the sulfur-carbon eight-membered ring were found to be similar to those in other structures containing such sulfur-carbon rings. There is evidence for pi-pi interactions between the aromatic rings of neighboring molecules, linking them into sheets.
Abstract9,9'‐Dianthryl zeigt eine Verschiebung und Strukturänderung seiner Fluoreszenzbande in Abhängigkeit von der Polarität und Viskosität des Lösungsmittels, die für einen derartigen Kohlenwasserstoff anomal ist. Dieses Verhalten kann durch die Annahme eines intramolekularen Ladungsüberganges und einer Verdrillung im angeregten Zustand erklärt werden.
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