Add time:09/07/2019 Source:sciencedirect.com
The synthesis is described of a series of mono-, bis-, and tris(1,3-dithiol-2-ylidene) derivatives7,9 and10 starting from 1,3-indanedione. Cyclic voltammetric data establish that the π-electron donor ability of these molecules increases in the sequence7 < 9 < 10, which is consistent with stabilisation of the cationic species by the presence of additional 1,3-dithiole units. The X-ray crystal structure of a complex (7a)2.TCNQ is reported. Short intramolecular S…O contacts are observed within moiety7a. The mean planes of7a and TCNQ are almost parallel forming planar layers within which ribbons of TCNQ molecules are intercalated by double ribbons of molecule7a all stretched along thex direction.Mono-, bis-, and tris(1,3-dithiol-2-ylidene) derivatives of 1,3-indanedione have been synthesised, and their π-electron donor ability studied by cyclic voltammetry. The crystal structure of a complex (7a)2·TCNQ is reported.Download full-size image
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