Polythiazyl

Polythiazyl (SN)x
Polythiazyl (or Polysulfur nitride), created in 1974, was the first conducting inorganic polymer. In addition to being an electrical conductor, it was also found to be a superconductor at very low temperatures (0.2 K).

Polythiazyl is synthesized from tetrasulfur tetranitride (S4N4) in the following way:


 * S4N4 + 8Ag &rarr; Ag2S + 2N2


 * S4N4 (w/ Ag2S catalyst) &rarr; 2S2N2 (w/ 77K cold finger) &rarr; S2N2


 * S2N2 (@ 0°C, sublimes to surface) &rarr; thermal polymerization &rarr; (SN)x