Information card for entry 2103725

Structure parameters

• Common name: maleic hydrazidem polymorph 3
• Chemical name: 1,2-dihydroxypyridazine; 6-hydroxy-3-pyridazinone polymorph 3
• Formula: C4 H4 N2 O2
• Calculated formula: C4 H4 N2 O2
• SMILES: n1[nH]c(=O)ccc1O
• Title of publication: Polymorphism of maleic hydrazide. I
• Authors of publication: Katrusiak, Andrzej
• Journal of publication: Acta Crystallographica Section B
• Year of publication: 2001
• Journal volume: 57
• Journal issue: 5
• Pages of publication: 697 - 704
• a: 6.607 ± 0.0015 Å
• b: 6.907 ± 0.0007 Å
• c: 10.539 ± 0.003 Å
• α: 90°
• β: 104 ± 0.04°
• γ: 90°
• Cell volume: 466.66 ± 0.19 ų
• Cell temperature: 293 ± 2 K
• Ambient diffraction temperature: 293 ± 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: 0.055
• Residual factor for significantly intense reflections: 0.0475
• Weighted residual factors for all reflections included in the refinement: 0.1036
• Goodness-of-fit parameter for all reflections included in the refinement: 1.093
• Diffraction radiation wavelength: 1.54178 Å
• Diffraction radiation type: CuKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: Yes