Poly sulfur nitride , SN X, and Related Polymers

Conducting polymers with p-phenylene groups in the backbone are generated by metathesis (Equation 7). Doping of these polymers with acceptors such as I2, Br2 or AsF5 increases the conductivity. Similar polymers have been prepared from 1,3- and 1,4-ClSC6H4SCl 294 

In order to prepare thin fdms of (SN) on plastic or metal surfaces, several processing techniques have been investigated, e.g., the electroreduction of [SsNs] salts. Powdered (SN) is prepared by the reaction of (NSC1)3 with trimethylsilyl azide in acetonitrile/ The sublimation of (SN) at 135°C and at pressure of 3 x 10 Torr. produces a gas-phase species, probably the cyclic [SsNs] radical, that reforms the polymer as epitaxial fibres upon condensation/ 

Although (SN)x does not react with water or acidic solutions, it slowly decomposes in alkaline solutions and it is readily oxidized. Partial bromination of (SN) or powdered S4N4 with bromine vapour yields the blue-black polymer (SNBro.4)x which has a room temperature conductivity of 2 x 10 cm . The sulfur-nitrogen chain in this 

Another possible modification of poly(sulfur nitride) that is expected to produce conducting polymers is the replacement of alternating sulfur in the thiazyl chain by an RC unit, i.e., [(R)CNSN]x. This type of polymer would have five r-electrons per four atoms in the repeating unit and, consequently, would have a partially occupied conducting band. The prospect of tuning the electronic properties of this polymer by 

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