中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | [1,3]dithiolo[4,5-b]pyrazine-2-one | 4428-04-0 | C5H2N2OS2 | 170.216 |
The preparation and characterization of some π-donors with a pyrazine-edge-group as well as with tetrathiapentalene-, thiophene-, and dihydrobenzoselenophene-spacer-groups are de scribed. Some of these donors give conducting charge transfer complexes with TCNQ and/or cation radical salts with I3 -, BF4 -and PF6 -as counter anions.
Modifications of the previously reported methods of preparation of racemic pyrazino-methyl-ethylenedithio-tetrathiafulvalene, i.e., 2-(5,6-dihy-dro-5-methyl-1,3-dithiolo[4,5-b][1,4]dithiin-2-ylidene)-1,3-dithiolo[4,5-b]pyrazine, and their cat ion radical salts with linear counter anions are re ported. ESR spectra and preliminary X-ray dif fraction measurements indicate that the salts crystallize in the τ-phase (tetragonal system).