Information card for entry 7239122

Structure parameters

• Formula: C20 H14 N2 O4
• Calculated formula: C20 H14 N2 O4
• Title of publication: Synthesis of a SO3H-bearing carbonaceous solid catalyst, PEG‒SAC: application for the easy access to a diversified library of pyran derivatives
• Authors of publication: Paul, Sanjay; Ghosh, Sirshendu; Bhattacharyya, Pranabes; Das, Asish R.
• Journal of publication: RSC Advances
• Year of publication: 2013
• Journal volume: 3
• Journal issue: 34
• Pages of publication: 14254
• a: 10.752 ± 0.004 Å
• b: 11.307 ± 0.004 Å
• c: 14.521 ± 0.005 Å
• α: 90°
• β: 111.549 ± 0.014°
• γ: 90°
• Cell volume: 1642 ± 1 ų
• Cell temperature: 296 ± 2 K
• Ambient diffraction temperature: 296 ± 2 K
• Number of distinct elements: 4
• 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: 0.0649
• Residual factor for significantly intense reflections: 0.0434
• Weighted residual factors for significantly intense reflections: 0.1189
• Weighted residual factors for all reflections included in the refinement: 0.1346
• Goodness-of-fit parameter for all reflections included in the refinement: 0.848
• Diffraction radiation wavelength: 0.71073 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No