title: 1,1-bis(phenylsulfonyl)-1-(pyridinio)methanide.
abstract: The title disulfonyl-stabilized pyridinium ylide, C(5)H(5)N(+)-C(-)(SO(2)C(6)H(5))(2) or C(18)H(15)NO(4)S(2), contains a near planar NCS(2) core. The structure suggests that the formal negative charge of the ylide C atom is delocalized to the S atoms rather than the N atom. Structural features of pyridinium ylides are briefly discussed.
authors.affiliation: Department of Chemistry, University of Glasgow, Glasgow G12 8QQ, Scotland. ken@chem.gla.ac.uk
authors.forename: Kenneth W
authors.initials: KW
authors.lastname: Muir
authors.forename: David G
authors.initials: DG
authors.lastname: Morris
authors.forename: Karl S
authors.initials: KS
authors.lastname: Ryder
authors.forename: Anastassios
authors.initials: A
authors.lastname: Varvoglis