Radical Silyldifluoromethylation of Electron-Deficient Alkenes.
Supranovich, Vyacheslav I.; Levin, Vitalij V.; Struchkova, Marina I.; Korlyukov, Alexander A.; Dilman, Alexander D.; Organic letters 19 (2017) 3215–3218; doi:10.1021/acs.orglett.7b01334

data_1546464
_publ_section_title
;
 Radical Silyldifluoromethylation of Electron-Deficient Alkenes.
;
_journal_issue                   12
_journal_name_full               'Organic letters'
_journal_page_first              3215
_journal_page_last               3218
_journal_paper_doi               10.1021/acs.orglett.7b01334
_journal_volume                  19
_journal_year                    2017
_chemical_formula_moiety         'C13 H27 F2 N O Si'
_chemical_formula_sum            'C13 H27 F2 N O Si'
_chemical_formula_weight         279.44
_space_group_crystal_system      orthorhombic
_space_group_IT_number           61
_space_group_name_Hall           '-P 2ac 2ab'
_space_group_name_H-M_alt        'P b c a'
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_atom_sites_solution_hydrogens   geom
_audit_creation_date             2016-12-09
_audit_creation_method
;
Olex2 1.2
(compiled 2016.11.30 svn.r3356 for OlexSys, GUI svn.r5269)
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   11.8766(6)
_cell_length_b                   11.7308(6)
_cell_length_c                   23.6382(13)
_cell_measurement_reflns_used    9909
_cell_measurement_temperature    120
_cell_measurement_theta_max      30.545
_cell_measurement_theta_min      2.431
_cell_volume                     3293.3(3)
_computing_cell_refinement       'SAINT v8.34A (Bruker, 2013)'
_computing_data_reduction        'SAINT v8.34A (Bruker, 2013)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL-2014/6 (Sheldrick, 2014)'
_diffrn_ambient_temperature      120.0
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0372
_diffrn_reflns_av_unetI/netI     0.0174
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       33
_diffrn_reflns_limit_l_min       -33
_diffrn_reflns_number            55609
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        26.000
_diffrn_reflns_theta_max         30.558
_diffrn_reflns_theta_min         1.723
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.153
_exptl_absorpt_correction_T_max  0.7461
_exptl_absorpt_correction_T_min  0.7024
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2014/5 (Bruker,2014/5) was used for absorption correction.
wR2(int) was 0.1007 before and 0.0472 after correction.
The Ratio of minimum to maximum transmission is 0.9414.
The \l/2 correction factor is 0.00150.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.127
_exptl_crystal_description       prism
_exptl_crystal_F_000             1216
_exptl_crystal_size_max          0.16
_exptl_crystal_size_mid          0.11
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.402
_refine_diff_density_min         -0.204
_refine_diff_density_rms         0.047
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.072
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     170
_refine_ls_number_reflns         5050
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.072
_refine_ls_R_factor_all          0.0537
_refine_ls_R_factor_gt           0.0396
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0424P)^2^+1.2239P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0920
_refine_ls_wR_factor_ref         0.1025
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4128
_reflns_number_total             5050
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ol7b01334_si_002.cif
_cod_data_source_block           dilmansn1
_cod_database_code               1546464
_shelxl_version_number           2014/6
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Ternary CH refined with riding coordinates:
 C5(H5), C8(H8)
2.b Secondary CH2 refined with riding coordinates:
 C2(H2A,H2B), C3(H3A,H3B)
2.c Idealised Me refined as rotating group:
 C6(H6A,H6B,H6C), C7(H7A,H7B,H7C), C9(H9A,H9B,H9C), C10(H10A,H10B,H10C),
 C11(H11A,H11B,H11C), C12(H12A,H12B,H12C), C13(H13A,H13B,H13C)
;
_shelx_res_checksum              59154
_shelx_hkl_checksum              10499
_olex2_submission_special_instructions 'No special instructions were received'