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A novel selective synthesis of the unsymmetrically substituted tetrathiafulvalene dimethyltrimethylene‐tetrathiafulvalene (DMtTTF) is described together with its electrocrystallization to the known conducting mixed‐valence ClO4– and ReO4– salts. Infrared (IR) and Raman spectra of the two isostructural quasi‐one‐dimensional cation radical salts (DMtTTF)2X (X = ReO4–, ClO4–) are investigated as a function...
We report on IR and Raman investigations of two isostructural quasi‐one‐dimensional charge‐transfer salts (DMtTTF)2X (X= ClO4, ReO4) with strictly regular conducting stacks. At room temperature the salts show metallic properties and below Tρ = 100‐150 K they undergo a transition to the semiconducting state. Polarized infrared reflectance (700‐16000 cm‐1) and Raman spectra (50‐3500 cm‐1) of single...
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