S6 N2 O15 -A Nitrogen-Poor Sulfur Nitride Oxide, and the Anhydride of Nitrido-tris-Sulfuric Acid.

David Van Gerven,Mathias S Wickleder

doi:10.1002/anie.202005056

David Van Gerven, Mathias S Wickleder

Open Access

https://doi.org/10.1002/anie.202005056

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Abstract

The reaction of hexachlorophosphazene, P3N3Cl6, with SO3 leads to the new sulfur nitride oxide S6N2O15. The compound displays an extraordinarily low nitrogen content and exhibits a bicyclic cage structure according to the formulation N{S(O)2O(O)2S}3N, with both nitrogen atoms in trigonal planar coordination of sulfur atoms. Interestingly, the new nitride oxide can be also seen as the anhydride of nitrido‐tris‐sulfuric acid, N(SO3H)3.

Highlights

The reaction of hexachlorophosphazene, P3N3Cl6, with SO3 leads to the new sulfur nitride oxide S6N2O15
With respect to the amount of the gained product, the reaction is almost quantitative, so that the reaction could be written as 2 P3N3Cl6 + 18 SO3!3 S6N2O15 + 4 POCl3 + 1=2 P4O10
The presence of POCl3 would explain that the sulfur trioxide which is used in excess in the reaction stays liquid, even if the ampoules are stored in a refrigerator

Summary

Introduction

The reaction of hexachlorophosphazene, P3N3Cl6, with SO3 leads to the new sulfur nitride oxide S6N2O15. With respect to the amount of the gained product, the reaction is almost quantitative, so that the reaction could be written as 2 P3N3Cl6 + 18 SO3!3 S6N2O15 + 4 POCl3 + 1=2 P4O10. [5], a reaction product at higher temperature.

Results

Conclusion