2-(1,3-Diselenol-2-ylidene)-5-(pyran-4-ylidene)- 1,3,4,6-tetrathiapentalene (PDS-TTP), its thiopyran analogue (TPDS-TTP), and their bis(methylthio) derivatives have been prepared. Their first and second oxidation potentials are comparable to those of the corresponding sulfur analogues. The PF6 and AsF6 salt of PDS-TTP displayed metallic conductivity down to 4.2 K, and TCNQ complex was semiconductor with a low activation energy (0.006 eV).
|Number of pages||2|
|Publication status||Published - 1999 Jun|
|Event||Proceedings of the 1998 International Conference on Science and Technology of Synthetic Metals (ICSM-98) - Montpellier|
Duration: 1998 Jul 12 → 1998 Jul 18