“…It was, however, only in 1982 that an X-ray crystallographic study of FXeNA C H T U N G T R E N N U N G (SO 2 F) 2 furnished the first definitive proof for the existence of a Xe À N bond. [22,23] In subsequent years, xenonnitrogen chemistry was considerably expanded, noticeably by Schrobilgen and co-workers, [24][25][26][27][28][29][30][31][32][33] and evidence for novel compounds is still emerging. [34,35] In general, apart from the molecular species FXeNA C H T U N G T R E N N U N G (SO 2 F) 2 , [18,20,22,23] Xe[N-A C H T U N G T R E N N U N G (SO 2 F) 2 ] 2 , [20,24] and Xe[NA C H T U N G T R E N N U N G (SO 2 CF 3 ) 2 ] 2 , [21] the xenon-nitrogen compounds observed in the condensed phase are salts of Xe À N cations and counteranions such as AsF 6 À , Sb 3 F 16…”