title: 3-Methyl-7-(2-thienyl)pyrido[2,3-d]pyrimidine-2,4(1H,3H)-dione: pi-stacked bilayers built from N-H...O, C-H...O and C-H...pi hydrogen bonds.
abstract: In the title compound, C(12)H(9)N(3)O(2)S, the thienyl substituent is disordered over two sets of sites with occupancies of 0.749 (3) and 0.251 (3). A combination of N-H...O, C-H...O and C-H...pi hydrogen bonds links the molecules into bilayers and these bilayers are themselves linked into a continuous structure by pi-pi stacking interactions.
authors.affiliation: Grupo de Investigación de Compuestos Heterocíclicos, Departamento de Química, Universidad de Valle, AA 25360, Cali, Colombia.
authors.forename: Jorge
authors.initials: J
authors.lastname: Trilleras
authors.forename: Jairo
authors.initials: J
authors.lastname: Quiroga
authors.forename: Justo
authors.initials: J
authors.lastname: Cobo
authors.forename: Christopher
authors.initials: C
authors.lastname: Glidewell
mesh_terms: D018360:Crystallography, X-Ray; D006860:Hydrogen Bonding; D015394:Molecular Structure; D011744:Pyrimidinones / Q000737:chemistry*
chemical_list: C543556:3-methyl-7-(2-thienyl)pyrido(2,3-d)pyrimidine-2,4(1H,3H)-dione; D011744:Pyrimidinones