The crystal structure of the well-studied 9,10-bis(1,3-dithiol-2-ylidene)-9,10-dihydroanthracene molecule, C20H12S4, (I), also known as exTTF, is reported. The molecular structure of (I) consists of a dihydroanthracene moiety with two 1,3-dithiol-2-ylidene substituents. This is a saddle-shaped molecule, which interacts with a close neighbor through various π-π and C - H⋯π contacts to form a 'dimer'. These 'dimers' interact through a series of C - H⋯S and C - H⋯π contacts to construct a complex three-dimensional extended structure.
Publication Source (Journal or Book title)
Acta Crystallographica Section E: Crystallographic Communications
Ren, Y., Lee, S., Bertke, J., & Moore, J. (2015). Crystal structure of 9,10-bis(1,3-dithiol-2-ylidene)-9,10-dihydroanthracene. Acta Crystallographica Section E: Crystallographic Communications, 71, 1475-1479. https://doi.org/10.1107/S2056989015020800