Thionitrosyl cation

Compared with the large number of nitrosyl complexes, only a few examples of thionitrosyl complexes have been studied. Although NS does not exist, a number of synthetic approaches to thionitrosyl complexes have been reported the reaction of nitrido complexes with S2CI2 or TMSNCS, treatment of chloro or 0x0 complexes with trithiazyl chloride or S(NTMS)2, or the use of heterocyclic nitrogen-sulfur rings. Pre-formed thionitrosyl cations in [NS][SbF6] or [NS)[AsFg] have been used to prepare the cationic complex [Re(NS)(CO)5] " in liquid S02. ... 

Dissociative ionization of [l,2,5]thiadiazolo[3,4-f][ l,2,5]thiadiazole 6 was found to be an efficient preparative route to in j// -generated thionitrosyl cyanide and its radical cation, both of which are stable and did not undergo unimolecular rearrangement under the reaction conditions. The [C,N2,S] ions were characterized by mass spectrometry (ml% 72) (see Section 10.05.3.2.2) <1997JST(418)209>. 

Sulphur-Nitrogen Compounds.— The chemistry of sulphur-nitrogen compounds has been reviewed. In particular, the newer aspects of these compounds were related to a background of earlier work and attention was drawn to structural similarities between certain recently discovered compounds and elemental sulphur. The topics covered include S4N4 and its reactions with Lewis acids, thionitrosyl derivatives, imide derivatives, and anionic and cationic species. 

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