Information card for entry 7203966

Structure parameters

• Formula: C53.5 H35 Cl3 O8
• Calculated formula: C53.5 H35 Cl3 O8
• Title of publication: Cyclic oligomers of poly(ether ketone) (PEK): synthesis, extraction from polymer, fractionation, and characterisation of the cyclic trimer, tetramer and pentamer
• Authors of publication: Ben-Haida, Abderrazak; Colquhoun, Howard M.; Hodge, Philip; Williams, David J.
• Journal of publication: Journal of Materials Chemistry
• Year of publication: 2000
• Journal volume: 10
• Journal issue: 9
• Pages of publication: 2011
• a: 8.7603 ± 0.0005 Å
• b: 10.1072 ± 0.0005 Å
• c: 14.0404 ± 0.0008 Å
• α: 75.262 ± 0.004°
• β: 73.004 ± 0.005°
• γ: 80.202 ± 0.004°
• Cell volume: 1143.57 ± 0.11 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: 0.0815
• Residual factor for significantly intense reflections: 0.0609
• Weighted residual factors for all reflections: 0.2084
• Weighted residual factors for significantly intense reflections: 0.1741
• Goodness-of-fit parameter for all reflections: 1.07
• Goodness-of-fit parameter for significantly intense reflections: 1.124
• Diffraction radiation wavelength: 1.54178 Å
• Diffraction radiation type: CuKα
• Has coordinates: Yes
• Has disorder: Yes
• Has Fobs: No