Poly sulfazene

Tetrasulfur tetranitride converts to disulfur dinitride on pyrolysis and this then polymerizes in the solid state to poly(sulfazene)... 

Poly(sulfazene) forms single crystals, that is, bundles of highly oriented fibers. The polymer behaves as a metal with respect to reflection, specific heat capacity, electrical conductivity, and magnetic susceptibility. The specific resistance is about 0.001 H cm at room temperature. The polymer is superconducting at 0.26 K. 

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