Information card for entry 7219755

Structure parameters

• Common name: Piroxicam: Form Alpha2
• Chemical name: Piroxicam
• Formula: C15 H13 N3 O4 S
• Calculated formula: C15 H13 N3 O4 S
• SMILES: S1(=O)(=O)N(C(=C(O)c2ccccc12)C(=O)Nc1ncccc1)C
• Title of publication: Crystallization and disorder of the polytypic α1and α2polymorphs of piroxicam
• Authors of publication: Upadhyay, Pratik P.; Bond, Andrew D.
• Journal of publication: CrystEngComm
• Year of publication: 2015
• Journal volume: 17
• Journal issue: 28
• Pages of publication: 5266
• a: 17.577 ± 0.003 Å
• b: 11.745 ± 0.002 Å
• c: 6.8516 ± 0.0014 Å
• α: 90°
• β: 98.07 ± 0.01°
• γ: 90°
• Cell volume: 1400.5 ± 0.4 ų
• Cell temperature: 298 ± 2 K
• Ambient diffraction temperature: 298 ± 2 K
• Number of distinct elements: 5
• Space group number: 14
• Hermann-Mauguin space group symbol: P 1 21/c 1
• Hall space group symbol: -P 2ybc
• Residual factor for all reflections: 0.1357
• Residual factor for significantly intense reflections: 0.1004
• Weighted residual factors for significantly intense reflections: 0.2381
• Weighted residual factors for all reflections included in the refinement: 0.2586
• Goodness-of-fit parameter for all reflections included in the refinement: 1.078
• Diffraction radiation wavelength: 1.54178 Å
• Diffraction radiation type: CuKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No