title: (4-nitrophenylsulfinyl)acetic acid, a three-dimensional hydrogen-bonded framework built from a combination of two-centre O-H...O and C-H...O hydrogen bonds and a three-centre C-H...(O)2 hydrogen bond.
abstract: Molecules of the title compound, C(8)H(7)NO(5)S, are linked into sheets by a combination of two-centre hydrogen bonds, one of type O-H...O [H...O = 1.81 A, O...O = 2.648 (2) A and O-H...O = 173 degrees ] and three of type C-H...O [H...O = 2.40-2.48 A, C...O = 3.206 (3)-3.391 (3) A and C-H...O = 131-160 degrees ]. These sheets are linked by an unusual three-centre C-H...(O)(2) hydrogen bond [H...O = 2.46 and 2.56 A, C...O = 3.289 (3) and 3.351 (3) A, and C-H...O = 141 and 137 degrees ], in which the two acceptors are carboxyl and sulfoxide O atoms.
authors.affiliation: School of Chemistry, University of St Andrews, St Andrews, Fife KY16 9ST, Scotland. cg@st-andrews.ac.uk
authors.forename: Christopher
authors.initials: C
authors.lastname: Glidewell
authors.forename: John N
authors.initials: JN
authors.lastname: Low
authors.forename: Janet M S
authors.initials: JM
authors.lastname: Skakle
authors.forename: James L
authors.initials: JL
authors.lastname: Wardell