Nitrides tetrasulfur tetranitride

Tetratellurium tetranitride, 4773 Tetrasulfur dinitride, 4755 Tetrasulfur tetranitride, 4770 Thallium(I) nitride, 4731... 

Solid-state (topochemical) polymerization of cyclic disulfur dinitride to poly(sulfur nitride) (or polythiazyl), -fSN, occurs on standing at ambient temperature or higher [Banister and Gorrell, 1998 Labes et al., 1979 Ray, 1978]. Disulfur dinitride is obtained by sublimation of tetrasulfur tetranitride. Polythiazyl is a potentially useful material, since it behaves like a metal. It has an electrical conductivity at room temperature about the same order of magnitude as a metal like mercury and is a superconductor at 0.3°C. Polythiazyl also has high light reflectivity and good thermal conductivity. However, it is insoluble and infusible, which prevents its practical utilization. 

Thiotrithiazyl. The (NS)3S— radical derived from Tetrasulfur Tetranitride (see in Vol 8, N102-L to N103-L, entered as Sulfur Nitride ). Its monosubstituted expl derivatives are presented below ... 

The following procedures give the synthesis of tetrasulfur tetranitride, disulfur dinitride, polymeric sulfur nitride, and tetrasulfur dinitride. 

Caution. Tetrasulfur tetranitride, S N, has been reported to explode under certain conditions if subjected to percussion, friction, sudden heating, or temperatures close to its melting point. It has also been reported that S2N2 may explode spontaneously when subjected to slight mechanical shock or rapid heating. Polymeric sulfur nitride, (SN, decomposes violently when heated much above 200°. On occasions it has exploded when subjected to high pressures. These substances should therefore be handled with appropriate caution. 

Mataka S, Hosoki A, Takahashi K, Tashiro M (1980) Sulfur nitride in organic chemistry. 9. The reaction of tetrasulfur tetranitride with benzyl ketones. Preparation of 3,4-disubstituted-1,2,5-thiadiazoles. J Heterocycl Chem 17 1681-1685... 

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