A new cationic S–N ring system, S₄N₄²⁺. The crystal structure of cyclotetrathiazyl bis hexachloroantimonate(V), [S₄N₄][SbCl₆]₂, and cyclotetrathiazyl hexafluoroantimonate(V) tetradecafluorotriantimonate, [S₄N₄][SbF₆][Sb₃F₁₄]

X-ray study of structure and charge density of 1-methylsulfonyl-2-phenylsulfonylethane

“…Slight changes in the ring electron density furthermore can have a drastic effect on the spatial structures of cyclic S and SN compounds. This is amply illustrated in the series S 8 --, S~ + --, S4N 4 (isoelectronic with Sg +) --, 54 N2+ where the number of n electrons decreases by 2 in each successive member (Davies et al, 1971;Gillespie, Slim & Tyrer, 1977).…”

Ionothermal Synthesis of Sulfidobismuth spiro‐Dicubane Cations

“…In 1975, Gillespie et al. reported the first cationic sulfidonitrogen rings [22–24] . The up to now solitary binary cation containing phosphorous, the polyhedral (P 3 Se 4 ) + , was discovered only recently [25] .…”

“…In 1975, Gillespie et al reported the first cationic sulfidonitrogen rings. [22][23][24] The up to now solitary binary cation containing phosphorous, the polyhedral (P 3 Se 4 ) + , was discovered only recently. [25] For the semimetallic elements of group 15, the isostructural cages (As 3 Ch 4 ) + (Ch = S, Se) are known.…”

The Mixed‐Valence Catena‐Heteropolycation (Bi2S2)+

“…The first representatives were derived from N 4 S 4 by Gillespie et al and formed heterocycles. [16][17][18] For the heavier homologue phosphorus, the only known binary polycation is (P 3 Se 4 ) + , which was independently discovered by several research groups few years ago. [19] The isostructural seven-atomic cages (As 3 S 4 ) 3 + and (As 3 Se 4 ) 3 + had been discovered also by Gillespie et al [20] The expansion towards the heavy semi-metallic elements led to the heterocubanes (Bi 4 Ch 4 ) 4 + with Ch = S, Se, Te.…”

“…The first representatives were derived from N 4 S 4 by Gillespie et al. and formed heterocycles [16–18] . For the heavier homologue phosphorus, the only known binary polycation is (P 3 Se 4 ) + , which was independently discovered by several research groups few years ago [19] .…”