The crystal structures of polymorphs I and III of sulphathiazole

The structure of 1-(4-imidazolylsulfonyl)-4-phenylimidazole

“…The distances and angles around the sulfur atom are similar to those observed in the sulfathiazole polymorphs (Kruger & Gafner, 1972) 1972) when allowances are made for the different types of nitrogen atoms (>N-vs. >N) and the internal corn- (4) is typical for the protonatde N site (Singh, 1965;Sletten, Sletten & Jensen, 1968). The same tautomer was observed in the histamine imidazole ring in 6-histaminopurine (Thewalt & Bugg, 1972).…”

Comparison of the dimensions and conformation of the sulfaguanidine moiety in sulfaguanidine monohydrate and trans-dichlorobis(sulfaguanidine)palladium(II)

“…1 "749 (6) 1 "431 (5) -120"4 103"4 1"449 (5) Reference present paper present paper Kruger & Gafner (1971) Kruger & Gafner (1971) Kruger & Gafner (1972) Klug (1968) O 'Connell & Maslen (1967) All6aume ( • (f) S-N~ . (g) Corrected for thermal motion.…”

Mimics of a R22(8) Hydrogen‐Bond Dimer Motif: Synthesis and Influence on the Crystallisation of Sulfathiazole and Sulfapyridine

“…Patterns were compared with the theoretical patterns generated from crystal structural data for each form obtained from the Cambridge Structural Database (CSD). The CSD reference codes for the structures of form I, II, III, IV and V used are, respectively, SUTHAZ01, [15] SUTHAZ, [16] SU-THAZ02, [15] SUTHAZ04, [17] SUTHAZ06. [5] As unit-cell dimensions (and consequently the positions of diffraction peaks) are temperature dependent, room-temperature unitcell dimensions were used in generating theoretical patterns, so as to provide the best comparison with the room temperature PXRD data we obtained.…”