Reinhard Hoppenheit, Enno Lork, Jan Petersen and Rüdiger Mews
NSF2NS(O)F2 reacts quantitatively with
[Co(SO2)n][AsF6]2 to
give
[Co{NSF2–N
S(O)F2}
4][AsF6]2·SO2; X-ray
structure analysis confirms the presence of a triple, double and single
bond in the same ligand.