Information card for entry 2222895

Structure parameters

• Chemical name: 1,1',2,2'-Tetramethyl-3,3'-(<i>p</i>-phenylenedimethylene)diimidazol-1-ium dibromide
• Formula: C18 H24 Br2 N4
• Calculated formula: C18 H24 Br2 N4
• Title of publication: 1,1',2,2'-Tetramethyl-3,3'-(<i>p</i>-phenylenedimethylene)diimidazol-1-ium dibromide
• Authors of publication: Puvaneswary, Subramaniam; Alias, Yatimah; Ng, Seik Weng
• Journal of publication: Acta Crystallographica Section E
• Year of publication: 2009
• Journal volume: 65
• Journal issue: 8
• Pages of publication: o1828
• a: 8.5689 ± 0.0004 Å
• b: 9.8617 ± 0.0005 Å
• c: 11.0272 ± 0.0004 Å
• α: 90°
• β: 93.222 ± 0.003°
• γ: 90°
• Cell volume: 930.37 ± 0.07 ų
• Cell temperature: 140 ± 2 K
• Ambient diffraction temperature: 140 ± 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: 0.065
• Residual factor for significantly intense reflections: 0.039
• Weighted residual factors for significantly intense reflections: 0.087
• Weighted residual factors for all reflections included in the refinement: 0.096
• Goodness-of-fit parameter for all reflections included in the refinement: 1.04
• Diffraction radiation wavelength: 0.71073 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: Yes
• Has Fobs: Yes