The first five-membered chalcogen–nitrogen ring system, containing two Te atoms, Cl2[graphic omitted], has been prepared either by dechlorination of Cl6Te2N2S with Ph3Sb or by reaction of S[N(SiMe3)2]2 with TeCl4; treatment of Cl2[graphic omitted] with AsF5 in liquid SO2 leads to the formation of [Cl[graphic omitted]]+[AsF6]–, and the molecular structure of this salt has been determined by X-ray crystallography.
A. Haas, J. Kasprowski and M. Pryka, J. Chem. Soc., Chem. Commun., 1992, 1144 DOI: 10.1039/C39920001144
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