title: Structure of 6-(3,3-dimethyl-2-oxo-2,3-dihydro-5-furanyl)-2-pyridone at 145 K.
abstract: C11H11NO3, M(r) = 205.21, triclinic, P1, a = 5.725 (1), b = 9.038 (1), c = 10.401 (2) A, alpha = 101.37 (1), beta = 102.63 (1), gamma = 102.83 (1) degrees, V = 494.7 (3) A3, Z = 2, Dx = 1.38 g cm-3, lambda (Mo K alpha) = 1.7107 A, mu = 0.62 cm-1, F(000) = 216, T = 145 K, R = 0.049, wR = 0.063 for 2386 unique observed reflections. The molecules, which are self-associating in solution, are arranged in the crystal in centrosymmetric dimers joined by N--H...O bonds between the amide functional groups. Analysis of displacement parameters indicates that the furanyl and pyridone groups are independently quite rigid, with the furanyl group librating with respect to the hydrogen-bonded pyridone.
authors.affiliation: Department of Chemistry and Biochemistry, J. D. McCullough X-ray Crystallography Laboratory, University of California, Los Angeles 90024.
authors.forename: E
authors.initials: E
authors.lastname: Maverick
authors.forename: J
authors.initials: J
authors.lastname: Chiefari
authors.forename: D A
authors.initials: DA
authors.lastname: Lightner
mesh_terms: D003460:Crystallization; D005583:Fourier Analysis; D005663:Furans / Q000737:chemistry*; D006860:Hydrogen Bonding; D046911:Macromolecular Substances; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D011728:Pyridones / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: D005663:Furans; D046911:Macromolecular Substances; D011728:Pyridones; C080299:6-(3,3-dimethyl-2-oxo-2,3-dihydro-5-furanyl)-2-pyridone