Nickel-Catalyzed Cross-Electrophile Coupling of Alkyl Fluorides: Stereospecific Synthesis of Vinylcyclopropanes.
Erickson, Lucas W.; Lucas, Erika L.; Tollefson, Emily J.; Jarvo, Elizabeth R.; Journal of the American Chemical Society 138 (2016) 14006–14011; doi:10.1021/jacs.6b07567

data_4130859
_publ_section_title
;
 Nickel-Catalyzed Cross-Electrophile Coupling of Alkyl Fluorides:
 Stereospecific Synthesis of Vinylcyclopropanes.
;
_journal_issue                   42
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              14006
_journal_page_last               14011
_journal_paper_doi               10.1021/jacs.6b07567
_journal_volume                  138
_journal_year                    2016
_chemical_absolute_configuration syn
_chemical_formula_sum            'C20 H19 Br O2'
_chemical_formula_weight         371.26
_space_group_crystal_system      monoclinic
_space_group_IT_number           4
_space_group_name_Hall           'P 2yb'
_space_group_name_H-M_alt        'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                90
_cell_angle_beta                 91.1186(12)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   5.4275(5)
_cell_length_b                   18.9357(17)
_cell_length_c                   16.5145(15)
_cell_measurement_reflns_used    9860
_cell_measurement_temperature    88(2)
_cell_measurement_theta_max      29.21
_cell_measurement_theta_min      2.47
_cell_volume                     1696.9(3)
_computing_cell_refinement       'Bruker SAINT 8.34a, 2013'
_computing_data_collection       'Bruker APEX2 2014.11-0, 2014'
_computing_data_reduction        'Bruker SAINT 8.34a, 2013'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'Bruker SHELXTL 2013/1'
_diffrn_ambient_temperature      88(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.928
_diffrn_measurement_device_type  'Bruker SMART APEX II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_unetI/netI     0.0404
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.928
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            4328
_diffrn_reflns_point_group_measured_fraction_full 0.516
_diffrn_reflns_point_group_measured_fraction_max 0.478
_diffrn_reflns_theta_full        25.500
_diffrn_reflns_theta_max         29.158
_diffrn_reflns_theta_min         1.233
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    2.430
_exptl_absorpt_correction_T_max  0.7458
_exptl_absorpt_correction_T_min  0.5619
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker TWINABS 2012/1'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.453
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    not_measured
_exptl_crystal_description       rectangular
_exptl_crystal_F_000             760
_exptl_crystal_size_max          0.453
_exptl_crystal_size_mid          0.185
_exptl_crystal_size_min          0.178
_refine_diff_density_max         0.668
_refine_diff_density_min         -0.417
_refine_diff_density_rms         0.069
_refine_ls_abs_structure_details
; 
No quotients, so Flack parameter determined by classical intensity fit 
;
_refine_ls_abs_structure_Flack   0.114(7)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.077
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     416
_refine_ls_number_reflns         4328
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.077
_refine_ls_R_factor_all          0.0306
_refine_ls_R_factor_gt           0.0280
_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^)+(0.0408P)^2^+0.1318P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0713
_refine_ls_wR_factor_ref         0.0725
_reflns_Friedel_coverage         0.000
_reflns_Friedel_fraction_full    0.000
_reflns_Friedel_fraction_max     0.000
_reflns_number_gt                4092
_reflns_number_total             4328
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja6b07567_si_002.cif
_cod_data_source_block           erj29
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_exptl_crystal_density_meas' value 'not_measured' was
changed to '?' -- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_original_sg_symbol_H-M      'P 21'
_cod_database_code               4130859
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.406
_shelx_estimated_absorpt_t_max   0.672
_shelx_res_checksum              51100
_shelx_hkl_checksum              5276