Information card for entry 2104011

Structure parameters

• Formula: C30 H22 N4 O8
• Calculated formula: C30 H22 N4 O8
• SMILES: n1ccc(cc1)c1ccncc1.n1ccc(cc1)c1ccncc1.OC(=O)c1cc(C(=O)O)c(cc1C(=O)O)C(=O)O
• Title of publication: Variable-temperature neutron diffraction studies of the short, strong N···O hydrogen bonds in the 1:2 co-crystal of benzene-1,2,4,5-tetracarboxylic acid and 4,4'-bipyridyl
• Authors of publication: Cowan, John A.; Howard, Judith A. K.; McIntyre, Garry J.; Lo, Samuel M.-F.; Williams, Ian D.
• Journal of publication: Acta Crystallographica Section B
• Year of publication: 2003
• Journal volume: 59
• Journal issue: 6
• Pages of publication: 794 - 801
• a: 7.5011 ± 0.0002 Å
• b: 9.7868 ± 0.0003 Å
• c: 10.2303 ± 0.0003 Å
• α: 64.14 ± 0.003°
• β: 71.682 ± 0.003°
• γ: 75.516 ± 0.003°
• Cell volume: 635.93 ± 0.04 ų
• Cell temperature: 293 ± 2 K
• Ambient diffraction temperature: 293 ± 2 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: 0.0419
• Residual factor for significantly intense reflections: 0.035
• Weighted residual factors for significantly intense reflections: 0.083
• Weighted residual factors for all reflections included in the refinement: 0.0875
• Goodness-of-fit parameter for all reflections included in the refinement: 1.048
• Diffraction radiation probe: neutron
• Diffraction radiation wavelength: 1.302 Å
• Diffraction radiation type: neutron
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: Yes