Information card for entry 7019250

Structure parameters

• Formula: C31 H58 B N4 O4 Si2 Sm
• Calculated formula: C31 H58 B N4 O4 Si2 Sm
• Title of publication: Syntheses and structures of lanthanide borohydrides supported by a bridged bis(amidinate) ligand and their high activity for controlled polymerization of ε-caprolactone, l-lactide and rac-lactide.
• Authors of publication: Li, Wenbo; Xue, Mingqiang; Tu, Jing; Zhang, Yong; Shen, Qi
• Journal of publication: Dalton transactions (Cambridge, England : 2003)
• Year of publication: 2012
• Journal volume: 41
• Journal issue: 24
• Pages of publication: 7258 - 7265
• a: 8.697 ± 0.0005 Å
• b: 19.9369 ± 0.0011 Å
• c: 23.1964 ± 0.0013 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 4022.1 ± 0.4 ų
• Cell temperature: 223 ± 2 K
• Ambient diffraction temperature: 223 ± 2 K
• Number of distinct elements: 7
• Space group number: 19
• Hermann-Mauguin space group symbol: P 21 21 21
• Hall space group symbol: P 2ac 2ab
• Residual factor for all reflections: 0.0497
• Residual factor for significantly intense reflections: 0.0459
• Weighted residual factors for significantly intense reflections: 0.1105
• Weighted residual factors for all reflections included in the refinement: 0.1133
• Goodness-of-fit parameter for all reflections included in the refinement: 1.093
• Diffraction radiation wavelength: 0.71075 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: Yes
• Has Fobs: No