# Herring-bone $\pi-\pi$ interactions in trans-2,6-diphenyl-2,3,5,6-tetrahydrothiapyran-4-one

Narasimhamurthy, T and Benny, JCN and Pandiarajan, K and Rathore, Ravindranath S (2003) Herring-bone $\pi-\pi$ interactions in trans-2,6-diphenyl-2,3,5,6-tetrahydrothiapyran-4-one. In: Acta Crystallographica Section C: Crystal Structure Communications, 59 (11). o620-o621.

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The structure of the title compound, $C_{17}H_{16}OS$, is primarily stabilized by T-shaped and parallel-displaced aromatic clusters. The distances between the centroids of the aromatic pairs are in the range 4.34-5.30 A. In the crystal packing, the molecules dimerize by means of $\pi-\pi$ interactions of both face-to-face and edge-to-face types, and the aromatic rings associate in a cyclic edge-to-face tetrameric arrangement of the herring-bone type. These herring-bone interactions appear to insulate hydrogen-bond interactions in the crystal structure.