Browsing by Author "Chen, Benming"

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    (BEDT-TTF)2X(TCE)0,5[X:BF4, FSO3, IO4] new organic metals
    (1991) Armbruster, Kurt; Bele, Petra; Brunner, Hermann; Chen, Benming; Dahm, Stefan; Geiger, Rolf; Heinen, Ilsabe; Keller, Heimo J.; Schweitzer, Dieter
    The structure, the temperature dependence of the resistivity, thermopower, ESR-linewidth and the spin susceptibility of a new series of organic metals (BEDT-TTF)2X·(TCE)0,5 [X = BF4, FS03 and IO4] is presented and discussed.
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    Organic metals from chiral BEDT-TTF donors
    (1991) Chen, Benming; Deilacher, Frank; Hoch, Matthias; Keller, Heimo J.; Wu, Peiji; Armbruster, Kurt; Geiger, Rolf; Kahlich, Siegfried; Schweitzer, Dieter
    We have recently described our project to prepare methylated BEDT-TTF derivatives in order to obtain different radical ion salts of these donors (1). Meanwhile we have obtained 7,7'-Dimethyl-BEDT-TTF ("DIET"), 7,8'-Dimethyl-BEDT-TTF ("DIET") and 7,7',8,8'-Tetramethyl-BEDT-TTF ("TMET") as isomeric mixtures and some of them in an "optically pure" form. The isomeric mixtures have been prepared as reported earlier (1) corresponding to the "classical" synthesis of BEDT-TTF (2). The optically pure compounds have been obtained starting from the optically pure 1,2-propanediol and 2,3-butanediol respectively, depicted on page 4.