The semi-pinacol rearrangement of homochiral epoxyalcohols catalysed by rare earth triflates
Bickley, Jamie F.; Hauer, Bernhardt; Pena, Paula C. A.; Roberts, Stanley M.; Skidmore, John; Journal of the Chemical Society, Perkin Transactions 1  (2001) 1253–; doi:10.1039/b101838h

data_7213471
_publ_section_title
;
 The semi-pinacol rearrangement of homochiral epoxyalcohols catalysed by
 rare earth triflates
;
_journal_issue                   11
_journal_name_full
'Journal of the Chemical Society, Perkin Transactions 1'
_journal_page_first              1253
_journal_paper_doi               10.1039/b101838h
_journal_year                    2001
_chemical_formula_sum            'C17 H18 O2'
_chemical_formula_weight         254.35
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   5.6084(7)
_cell_length_b                   13.3595(17)
_cell_length_c                   19.118(3)
_cell_measurement_temperature    213(2)
_cell_volume                     1432.4(3)
_computing_data_collection       'IPDS (STOE, 1997)'
_computing_data_reduction        'X-RED (STOE, 1996)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      213(2)
_diffrn_detector_area_resol_mean 6.67
_diffrn_measured_fraction_theta_full 0.981
_diffrn_measured_fraction_theta_max 0.981
_diffrn_measurement_device_type  'Stoe IPDS'
_diffrn_measurement_method       'image plate'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0794
_diffrn_reflns_av_sigmaI/netI    0.0835
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            9206
_diffrn_reflns_theta_full        24.18
_diffrn_reflns_theta_max         24.18
_diffrn_reflns_theta_min         1.86
_exptl_absorpt_coefficient_mu    0.076
_exptl_absorpt_correction_T_max  0.9917
_exptl_absorpt_correction_T_min  0.9674
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.179
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             544
_exptl_crystal_size_max          0.80
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.100
_refine_diff_density_min         -0.111
_refine_diff_density_rms         0.027
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   1.5(19)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.772
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     173
_refine_ls_number_reflns         2260
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.772
_refine_ls_R_factor_all          0.0658
_refine_ls_R_factor_gt           0.0333
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0216P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0608
_refine_ls_wR_factor_ref         0.0661
_reflns_number_gt                1357
_reflns_number_total             2260
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b101838hsup1.cif
_cod_data_source_block           ppc38
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 

The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.0216P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3' was
changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to
'w=1/[\s^2^(Fo^2^)+(0.0216P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_cell_volume        1432.4(4)
_cod_database_code               7213471