Information card for entry 1575175

Structure parameters

• Chemical name: 2-(4-(diphenylamino)-3-methylpyridin-1-ium-1-yl)-4,4,5,5-tetrafluoro-3-oxocyclopent-1-en-1-olate
• Formula: C23 H16 F4 N2 O2
• Calculated formula: C23 H16 F4 N2 O2
• Title of publication: Planarisation or a twist? Using steric engineering to unlock the origin of mechanofluorochromic red-shifts.
• Authors of publication: McDonald, Peter W.; Goerigk, Lars; Ritchie, Chris
• Journal of publication: Chemical science
• Year of publication: 2025
• Journal volume: 16
• Journal issue: 34
• Pages of publication: 15320 - 15332
• a: 15.5 ± 0.2 Å
• b: 7.4 ± 0.13 Å
• c: 17.33 ± 0.11 Å
• α: 90°
• β: 97.8 ± 0.3°
• γ: 90°
• Cell volume: 1969 ± 4 ų
• Cell temperature: 294 K
• Ambient diffraction temperature: 294 K
• Number of distinct elements: 5
• 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: 0.1832
• Residual factor for significantly intense reflections: 0.1347
• Weighted residual factors for significantly intense reflections: 0.3165
• Weighted residual factors for all reflections included in the refinement: 0.3409
• Goodness-of-fit parameter for all reflections included in the refinement: 1.089
• Diffraction radiation wavelength: 0.0251 Å
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No