Acta Crystallographica, Section C: Crystal Structure Communications p. 1150 - 1152 (1994)
Update date:2022-07-29
Topics:
Simonsen, O.
Fanghaenel, E.
Iversen, B. Brummerstedt
Larsen, F. Krebs
The title compound is an 'inner' salt: 6-(hydroxyiminomethyl)-4-methyl-1-phenylpyridazinium-3-sulfonate, C12H11N3O4S (1).The pyridazinium ring is almost planar and twisted approximately 50 degree out of the benzene ring plane.The oxime -OH group forms an intermolecular hydrogen bond to one of the sulfonate O atoms.The identification of (1) has revealed an unusual rearrangement.
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