Cobalt-Catalyzed Asymmetric Hydroboration/Cyclization of 1,6-Enynes with Pinacolborane.
Yu, Songjie; Wu, Caizhi; Ge, Shaozhong; Journal of the American Chemical Society 139 (2017) 6526–6529; doi:10.1021/jacs.7b01708

data_4126012
_publ_section_title
;
 Cobalt-Catalyzed Asymmetric Hydroboration/Cyclization of 1,6-Enynes with
 Pinacolborane.
;
_journal_issue                   19
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              6526
_journal_page_last               6529
_journal_paper_doi               10.1021/jacs.7b01708
_journal_volume                  139
_journal_year                    2017
_chemical_absolute_configuration ad
_chemical_formula_sum            'C20 H27 B O5'
_chemical_formula_weight         358.22
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   6.1827(4)
_cell_length_b                   16.2477(9)
_cell_length_c                   18.7515(11)
_cell_measurement_reflns_used    9955
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      78.56
_cell_measurement_theta_min      2.72
_cell_volume                     1883.68(19)
_computing_cell_refinement       'APEX3 v2016.1-0 (Bruker AXS)'
_computing_data_collection       'APEX3 (Bruker AXS)'
_computing_data_reduction        'SAINT V8.32B (Bruker AXS Inc., 2014)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL--2014 (Sheldrick 2014)'
_computing_structure_solution    'SHELXT--(Sheldrick 2015)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Bruker D8 Venture'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0474
_diffrn_reflns_av_unetI/netI     0.0197
_diffrn_reflns_Laue_measured_fraction_full 0.995
_diffrn_reflns_Laue_measured_fraction_max 0.995
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            55190
_diffrn_reflns_point_group_measured_fraction_full 0.996
_diffrn_reflns_point_group_measured_fraction_max 0.996
_diffrn_reflns_theta_full        66.572
_diffrn_reflns_theta_max         66.572
_diffrn_reflns_theta_min         3.599
_exptl_absorpt_coefficient_mu    0.717
_exptl_absorpt_correction_T_max  0.7543
_exptl_absorpt_correction_T_min  0.5611
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Sadabs, (Sheldrick 2012)'
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.263
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'Not Measured'
_exptl_crystal_description       Plate
_exptl_crystal_F_000             768
_exptl_crystal_size_max          0.402
_exptl_crystal_size_mid          0.359
_exptl_crystal_size_min          0.172
_refine_diff_density_max         0.189
_refine_diff_density_min         -0.190
_refine_diff_density_rms         0.041
_refine_ls_abs_structure_details
; 
 Flack x determined using 1354 quotients [(I+)-(I-)]/[(I+)+(I-)] 
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259). 
;
_refine_ls_abs_structure_Flack   0.05(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.052
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     241
_refine_ls_number_reflns         3323
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.052
_refine_ls_R_factor_all          0.0276
_refine_ls_R_factor_gt           0.0273
_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^)+(0.0396P)^2^+0.3993P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0686
_refine_ls_wR_factor_ref         0.0689
_reflns_Friedel_coverage         0.715
_reflns_Friedel_fraction_full    0.998
_reflns_Friedel_fraction_max     0.998
_reflns_number_gt                3284
_reflns_number_total             3323
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja7b01708_si_003.cif
_cod_data_source_block           g738
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'Multi-scan' changed to
'multi-scan' according to
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

'_exptl_crystal_density_meas' value 'Not Measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 4973 2017-02-22 13:04:09Z antanas 

 Adding full bibliography for 4126012--4126014.cif.
;
_cod_database_code               4126012
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.761
_shelx_estimated_absorpt_t_max   0.887
_computing_bruker_data_scaling   'SADABS V2012/1 (Bruker AXS Inc.)'
_shelx_res_checksum              1015
_shelx_hkl_checksum              92238