Abstract
Highly polarized 4′5′-bis(methylthio), 4′,5′-ethylenedithio, and 4′,5′-ethylenedioxy-4,5-dithiocyanotetra-thiafulvalenes [BMT-TTF(SCN)2, EDT-TTF(SCN)2, and EDO-TTF(SCN)2] were synthesized in moderated yields from 2-cyanoethylthio-TTF derivatives. EDO-TTF(SCN)2 formed a CT complex with TCNQF4 due to its moderate electron donating ability. The packing structure of the CT complex obtained by X-ray analysis shows many intermolecular interactions through the S•••S, S•••N, C•••N, and N•••O contacts. The strong intermolecular interactions composed of the donor–donor, donor–acceptor, and acceptor–acceptor combinations enhance the dimensionality of the molecular network in the CT-complex. †Crystallographic data for 1c•TCNQF4 have been deposited with the Cambridge Crystallographic Data Centre as Supple-mentary Publication No. CCDC 715536.
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