Summary: The title compounds are obtained by the thermal decomposition of aryl- diazonium tris(fluorosulphonyl)me ray crystal analysis, NkQ IH and f$anides; their structure is proved by the X- F spectra data as well as by chemical trans- formations. ... We report on the synthesis of the first representatives of alkane sulpho- ... We have found that interaction of tris(fluorosulphonyl)methane' (I) with ... II a ii = H 92% bR = pF 893 c ri = mF 916 dd = ...