title: Methyl 7-hydroxy-1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydropteridine-6-carboxylate-dimethyl sulfoxide (1/1) forms chains containing O-H...O and C-H...O hydrogen bonds and aromatic pi-pi-stacking interactions.
abstract: In the title compound, C11H12N4O5-C2H6OS, the molecular components are linked by a short hydrogen bond with dimensions O...O 2.517 (2) A and O-H...O 168 degrees. Paired C-H...O hydrogen bonds [C...O 3.362 (2) and 3.382 (2) A; C-H...O 157 and 140 degrees] generate cyclic centrosymmetric four-component aggregates reinforced by aromatic pi-pi-stacking interactions, and further C-H...O hydrogen bonds [C.O 3.472 (3) and 3.521 (2) A; C-H...O 156 and 157 degrees] link these aggregates into chains.
authors.affiliation: Department of Electronic Engineering and Physics, University of Dundee, Nethergate, Dundee DD1 4HN, Scotland, UK.
authors.forename: D
authors.initials: D
authors.lastname: Cannon
authors.forename: J N
authors.initials: JN
authors.lastname: Low
authors.forename: J
authors.initials: J
authors.lastname: Cobo
authors.forename: S
authors.initials: S
authors.lastname: Molina
authors.forename: M
authors.initials: M
authors.lastname: Nogueras
authors.forename: A
authors.initials: A
authors.lastname: Sánchez
authors.forename: C
authors.initials: C
authors.lastname: Glidewell
mesh_terms: D018360:Crystallography, X-Ray; D004121:Dimethyl Sulfoxide / Q000737:chemistry*; D006860:Hydrogen Bonding; D015394:Molecular Structure; D011621:Pteridines / Q000737:chemistry*
chemical_list: D011621:Pteridines; C431294:methyl 7-hydroxy-1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydropteridine-6-carboxylate; D004121:Dimethyl Sulfoxide