Information card for entry 2013334

Structure parameters

• Chemical name: 1-Acetyl-2a'-phenyl-4'-ethylspiro[indole-3,2'-[2a'H,5a'H]oxeto[5,4-b]oxazol]- 2(1H)-one
• Formula: C21 H18 N2 O4
• Calculated formula: C21 H18 N2 O4
• Title of publication: 1-Acetyl-4'-ethyl-2a'-phenyl-2',2a',5',5a'-tetrahydrospiro[1<i>H</i>-indole-3,2'-oxeto[5,4-<i>b</i>]oxazol]-2(3<i>H</i>)-one and 1-acetyl-4',5a'-diphenyl-2',2a',5',5a'-tetrahydrospiro[1<i>H</i>-indole-3,2'-oxeto[5,4-<i>b</i>]oxazol]-2(3<i>H</i>)-one
• Authors of publication: Anwar Usman; Hoong-Kun Fun; Lei Wang; Yan Zhang; Jian-Hua Xu
• Journal of publication: Acta Crystallographica Section C
• Year of publication: 2003
• Journal volume: 59
• Journal issue: 6
• Pages of publication: o305 - o307
• a: 10.8569 ± 0.0006 Å
• b: 12.4129 ± 0.0006 Å
• c: 12.9849 ± 0.0006 Å
• α: 90°
• β: 97.386 ± 0.001°
• γ: 90°
• Cell volume: 1735.4 ± 0.15 ų
• Cell temperature: 213 ± 2 K
• Ambient diffraction temperature: 213 ± 2 K
• Number of distinct elements: 4
• Space group number: 14
• Hermann-Mauguin space group symbol: P 1 21/n 1
• Hall space group symbol: -P 2yn
• Residual factor for all reflections: 0.0622
• Residual factor for significantly intense reflections: 0.0491
• Weighted residual factors for significantly intense reflections: 0.1276
• Weighted residual factors for all reflections included in the refinement: 0.142
• Goodness-of-fit parameter for all reflections included in the refinement: 1.071
• Diffraction radiation wavelength: 0.71073 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: Yes
• Has Fobs: Yes