title: N,N'-Bis[tris(hydroxymethyl)methyl]-ethanediamide: six O-H...O hydrogen bonds generate only a two-dimensional structure.
abstract: Molecules of the title compound, C(10)H(20)N(2)O(8), adopt a conformation which is almost centrosymmetric. The molecules are disordered over two sets of sites with an occupancy ratio of 0.94:0.06. In the major form, there are two intramolecular O-H...O hydrogen bonds [O...O 2.756 (4) and 2.765 (4) A; O-H...O 144 and 146 degrees ], in which the two amidic O atoms act as acceptors. In addition, there are four intermolecular O-H...O hydrogen bonds [O...O 2.650 (3)-2.666 (3) A; O-H...O 158-171 degrees ]; these link each molecule to six others in a continuous sheet structure which contains five distinct ring motifs, two of the S(7) type, two of the R(3)(3)(10) type and one of the R(2)(2)(22) type.
authors.affiliation: Department of Chemistry, University of Aberdeen, Meston Walk, Old Aberdeen AB24 3UE, Scotland.
authors.forename: J N
authors.initials: JN
authors.lastname: Ross
authors.forename: J N
authors.initials: JN
authors.lastname: Low
authors.forename: C
authors.initials: C
authors.lastname: Fernandes
authors.forename: J L
authors.initials: JL
authors.lastname: Wardell
authors.forename: C
authors.initials: C
authors.lastname: Glidewell