Information card for entry 2213645

Structure parameters

• Chemical name: 1,6,6-Trimethyl-6,7,8,9-tetrahydrophenanthro[1,2-b]furan-10,11-dione
• Formula: C19 H18 O3
• Calculated formula: C19 H18 O3
• Title of publication: 1,6,6-Trimethyl-6,7,8,9-tetrahydrophenanthro[1,2-<i>b</i>]furan-10,11-dione
• Authors of publication: Xin-Qiao Liu; Wen-Yuan Gao
• Journal of publication: Acta Crystallographica Section E
• Year of publication: 2007
• Journal volume: 63
• Journal issue: 6
• Pages of publication: o2831 - o2831
• a: 6.5579 ± 0.0011 Å
• b: 9.1687 ± 0.0015 Å
• c: 24.328 ± 0.004 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 1462.8 ± 0.4 ų
• Cell temperature: 113 ± 2 K
• Ambient diffraction temperature: 113 ± 2 K
• Number of distinct elements: 3
• Space group number: 53
• Hermann-Mauguin space group symbol: P m n a
• Hall space group symbol: -P 2ac 2
• Residual factor for all reflections: 0.06
• Residual factor for significantly intense reflections: 0.0569
• Weighted residual factors for significantly intense reflections: 0.1362
• Weighted residual factors for all reflections included in the refinement: 0.1387
• Goodness-of-fit parameter for all reflections included in the refinement: 1.167
• Diffraction radiation wavelength: 0.7107 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: Yes