Information card for entry 2021398

Structure parameters

• Common name: Pyrazine‒hemimellitic acid (1/1)
• Chemical name: Pyrazine‒benzene-1,2,3-tricarboxylic acid (1/1)
• Formula: C13 H10 N2 O6
• Calculated formula: C13 H10 N2 O6
• SMILES: n1ccncc1.c1(c(c(ccc1)C(=O)O)C(=O)O)C(=O)O
• Title of publication: Cocrystals of pyrazine and benzene polycarboxylic acids
• Authors of publication: Dutkiewicz, Grzegorz; Dutkiewicz, Edward; Kubicki, Maciej
• Journal of publication: Acta Crystallographica Section C
• Year of publication: 2018
• Journal volume: 74
• Journal issue: 11
• Pages of publication: 1420 - 1426
• a: 7.7184 ± 0.0009 Å
• b: 9.9393 ± 0.001 Å
• c: 10.03 ± 0.001 Å
• α: 115.029 ± 0.01°
• β: 112.471 ± 0.01°
• γ: 92.672 ± 0.009°
• Cell volume: 624 ± 0.15 ų
• Cell temperature: 100 ± 1 K
• Ambient diffraction temperature: 100 ± 1 K
• Number of distinct elements: 4
• Space group number: 2
• Hermann-Mauguin space group symbol: P -1
• Hall space group symbol: -P 1
• Residual factor for all reflections: 0.041
• Residual factor for significantly intense reflections: 0.0346
• Weighted residual factors for significantly intense reflections: 0.0862
• Weighted residual factors for all reflections included in the refinement: 0.092
• Goodness-of-fit parameter for all reflections included in the refinement: 1.041
• Diffraction radiation probe: x-ray
• Diffraction radiation wavelength: 0.71073 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: Yes