Abstract
Following the preparation of tetrathiafulvalene (TTF) and symmetrically substituted analogs such as TMTTF, TMTSF or BEDT-TTF [1], unsymmetrically substituted TTFs have been investigated recently for several reasons:
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(i)
TTFs lacking a center of symmetry (such as EDT-TTF or MDT-TTF) are expected to organize in the solid state into head-to-tail (centrosymmetrical) dimers, which may favor the formation of the so-called к-phases in their corresponding cation-radical salts.
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(ii)
Model molecules such as TMDSDTF [2] have also been prepared and the properties of their cation-radical salts investigated and compared to those of the “pure” TMTTF or TMTSF salts.
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Fourmigue, M., Dolbecq, A., Krebs, F.C., Larsen, J. (1995). Unsymmetrically-Substituted Tetrathiafulvalenes (TTF) as Key Intermediates in the Preparation of Functionalized TTF Derivatives. In: Becher, J., Schaumburg, K. (eds) Molecular Engineering for Advanced Materials. NATO ASI Series, vol 456. Springer, Dordrecht. https://doi.org/10.1007/978-94-015-8575-0_18
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