Information card for entry 2312976

Structure parameters

• Common name: Guanine anhydrous alpha
• Chemical name: Guanine anhydrous
• Formula: C5 H5 N5 O
• Calculated formula: C5 H5 N5 O
• Title of publication: Semi-automated MicroED system unveils multiple polymorphs in fish-derived guanine crystals.
• Authors of publication: Nakazawa, Minato; Hayashi, Seishu; Tanaka, Keita; Iwasaki, Kenji; Goda, Makoto; Yamada, Yusuke; Adachi, Naruhiko
• Journal of publication: Acta crystallographica. Section C, Structural chemistry
• Year of publication: 2026
• Journal volume: 82
• Journal issue: Pt 7
• Pages of publication: 310 - 323
• a: 3.5993 ± 0.0006 Å
• b: 9.837 ± 0.0006 Å
• c: 16.5211 ± 0.0013 Å
• α: 90°
• β: 95.656 ± 0.011°
• γ: 90°
• Cell volume: 582.1 ± 0.11 ų
• Cell temperature: 92 K
• Ambient diffraction temperature: 92 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: 0.1279
• Residual factor for significantly intense reflections: 0.1107
• Weighted residual factors for significantly intense reflections: 0.3214
• Weighted residual factors for all reflections included in the refinement: 0.3274
• Goodness-of-fit parameter for all reflections included in the refinement: 1.167
• Diffraction radiation wavelength: 0.02508 Å
• Diffraction radiation type: electrons200keV
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No