Information card for entry 2007785

Structure parameters

• Common name: Spiro[fluorene-chromenes]
• Chemical name: spiro[7H-benzofurano[3,2-g]-chromene-7,9'-fluorene]
• Formula: C28 H22 O2
• Calculated formula: C28 H22 O2
• SMILES: c1cccc2c1C1(c3c2cccc3)C=Cc2c(O1)ccc1c2c2c(o1)CCCCC2
• Title of publication: Photochromic Properties of Spiro[fluorene-chromenes]
• Authors of publication: Aldoshin, Sergei; Chuev, Igor; Filipenko, Olga; Pozzo, Jean Luc; Lokshin, Vladimir; Pèpe, Gérard
• Journal of publication: Acta Crystallographica Section C
• Year of publication: 1998
• Journal volume: 54
• Journal issue: 11
• Pages of publication: 1720 - 1722
• a: 9.876 ± 0.003 Å
• b: 11.156 ± 0.004 Å
• c: 11.281 ± 0.004 Å
• α: 64.72 ± 0.02°
• β: 65.51 ± 0.02°
• γ: 80.78 ± 0.02°
• Cell volume: 1022.5 ± 0.6 ų
• Cell temperature: 293 ± 2 K
• Ambient diffraction temperature: 293 ± 2 K
• Number of distinct elements: 3
• Space group number: 2
• Hermann-Mauguin space group symbol: P -1
• Hall space group symbol: -P 1
• Residual factor for all reflections: 0.047
• Residual factor for significantly intense reflections: 0.0441
• Weighted residual factors for all reflections: 0.0911
• Weighted residual factors for significantly intense reflections: 0.0903
• Goodness-of-fit parameter for all reflections: 1.005
• Goodness-of-fit parameter for significantly intense reflections: 1.227
• Diffraction radiation wavelength: 0.71073 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No