Information card for entry 7057033

Structure parameters

• Common name: usnic acid
• Chemical name: usnic acid
• Formula: C18 H16 O7
• Calculated formula: C18 H16 O7
• Title of publication: In vitro inhibition of Helicobacter pylori and interaction studies of lichen natural products with jack bean urease
• Authors of publication: Lage, Tiago C. A.; Maciel, Thamilla Maria S.; Mota, Yane C. C.; Sisto, Francesca; Sabino, José R.; Santos, Josué C. C.; Figueiredo, Isis M.; Masia, Carla; de Fátima, Ângelo; Fernandes, Sergio A.; Modolo, Luzia V.
• Journal of publication: New Journal of Chemistry
• Year of publication: 2018
• Journal volume: 42
• Journal issue: 7
• Pages of publication: 5356
• a: 8.0077 ± 0.0003 Å
• b: 18.8247 ± 0.0006 Å
• c: 20.1978 ± 0.0007 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 3044.67 ± 0.18 ų
• Cell temperature: 150 ± 2 K
• Ambient diffraction temperature: 150 ± 2 K
• Number of distinct elements: 3
• Space group number: 19
• Hermann-Mauguin space group symbol: P 21 21 21
• Hall space group symbol: P 2ac 2ab
• Residual factor for all reflections: 0.0233
• Residual factor for significantly intense reflections: 0.0231
• Weighted residual factors for significantly intense reflections: 0.0628
• Weighted residual factors for all reflections included in the refinement: 0.063
• Goodness-of-fit parameter for all reflections included in the refinement: 1.044
• Diffraction radiation wavelength: 1.54178 Å
• Diffraction radiation type: CuKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No