摘要:
The synthesis of anellated tetrathiafulvalenes (TTF) 10a-c, 11a-b via the 1,3-dithiolium salt/triethylamin or 1,3-dithiole-2-thione/triethyl phosphite route is described. The dihydrophenanthreno-anellated TITs 10a, b can be thermally transformed into the phenanthreno-anellated TTFs 11a, b. Only in the case of the dihydrophenanthreno-anellated TTF 10b (with ''alpha-naphthyl structure'') the isolation of the cis- and trans-isomer was possible due to differences in the solubility. Starting from the pure cis- or trans-isomer the radical salts of 10b are reducible to a 1 : 1 mixture of the cis/trans stereo isomers. The spectroscopic, electrochemical, and conductivity properties of the synthesized TTFs and their complexes with iodine, TCNQ, and DDQ are described.