Visible-light promoted fluoroalkylselenolation: toward the reactivity of unsaturated compounds.
Ghiazza, Clément; Khrouz, Lhoussain; Monnereau, Cyrille; Billard, Thierry; Tlili, Anis; Chemical communications (Cambridge, England) 54 (2018) 9909–9912; doi:10.1039/c8cc05256e

data_7122092
_publ_section_title
;
 Visible-light promoted fluoroalkylselenolation: toward the reactivity of
 unsaturated compounds.
;
_journal_issue                   71
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              9909
_journal_page_last               9912
_journal_paper_doi               10.1039/c8cc05256e
_journal_volume                  54
_journal_year                    2018
_chemical_formula_moiety         'C22 H17 F3 O2 S Se'
_chemical_formula_sum            'C22 H17 F3 O2 S Se'
_chemical_formula_weight         481.38
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     direct
_audit_update_record
;
2018-06-05 deposited with the CCDC.
2018-08-06 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 92.742(16)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   35.871(7)
_cell_length_b                   5.8331(8)
_cell_length_c                   19.330(3)
_cell_measurement_reflns_used    2642
_cell_measurement_temperature    150.01(10)
_cell_measurement_theta_max      24.9650
_cell_measurement_theta_min      3.4350
_cell_volume                     4040.0(12)
_computing_cell_refinement       'CrysAlisPro 1.171.38.41 (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.38.41 (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro 1.171.38.41 (Rigaku OD, 2015)'
_computing_molecular_graphics    'CAMERON (Watkin et al., 1996)'
_computing_publication_material  'CRYSTALS (Betteridge et al., 2003)'
_computing_structure_refinement  'CRYSTALS (Betteridge et al., 2003)'
_computing_structure_solution    'SIR97 (Altomare et al., 1999)'
_diffrn_ambient_environment      N~2~
_diffrn_ambient_temperature      150.01(10)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 10.4685
_diffrn_detector_type            Atlas
_diffrn_measured_fraction_theta_full 0.983
_diffrn_measured_fraction_theta_max 0.910
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'Xcalibur, Atlas, Gemini ultra'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.085
_diffrn_reflns_limit_h_max       44
_diffrn_reflns_limit_h_min       -49
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            25768
_diffrn_reflns_theta_full        25.141
_diffrn_reflns_theta_max         29.578
_diffrn_reflns_theta_min         3.027
_diffrn_source                   'fine-focus sealed X-ray tube'
_diffrn_source_type              'Enhance (Mo) X-ray Source'
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.005
_exptl_absorpt_correction_T_max  0.882
_exptl_absorpt_correction_T_min  0.527
_exptl_absorpt_correction_type   analytical
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.38.41 (Rigaku Oxford Diffraction, 2015)
Analytical numeric absorption correction using a multifaceted crystal
            model based on expressions derived by R.C. Clark & J.S. Reid.
(Clark, R. C. & Reid, J. S. (1995). Acta Cryst. A51, 887-897)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.583
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1936
_exptl_crystal_size_max          0.387
_exptl_crystal_size_mid          0.085
_exptl_crystal_size_min          0.074
_refine_diff_density_max         1.42
_refine_diff_density_min         -1.58
_refine_ls_extinction_method     None
_refine_ls_goodness_of_fit_ref   1.0115
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     299
_refine_ls_number_reflns         5143
_refine_ls_number_restraints     67
_refine_ls_R_factor_all          0.1301
_refine_ls_R_factor_gt           0.0696
_refine_ls_shift/su_max          0.0003534
_refine_ls_shift/su_mean         0.0000150
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
;
 Method, part 1, Chebychev polynomial, (Watkin, 1994, Prince, 1982) 
 [weight] = 1.0/[A~0~*T~0~(x)+A~1~*T~1~(x) ... +A~n-1~]*T~n-1~(x)] 
 where A~i~ are the Chebychev coefficients listed below and x= Fcalc/Fmax 
 Method = Robust Weighting (Prince, 1982) 
 W = [weight] * [1-(deltaF/6*sigmaF)^2^]^2^ 
 A~i~ are: 
 276. 394. 198. 48.4 
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.1892
_refine_ls_wR_factor_gt          0.1216
_refine_ls_wR_factor_ref         0.1892
_reflns_limit_h_max              49
_reflns_limit_h_min              -49
_reflns_limit_k_max              7
_reflns_limit_k_min              0
_reflns_limit_l_max              25
_reflns_limit_l_min              0
_reflns_number_gt                2866
_reflns_number_total             5153
_reflns_threshold_expression     I>2.0\s(I)
_oxford_diffrn_Wilson_B_factor   3.56
_oxford_diffrn_Wilson_scale      15.47
_oxford_refine_ls_r_factor_ref   0.1301
_oxford_refine_ls_scale          0.665(2)
_oxford_reflns_number_all        5143
_cod_data_source_file            c8cc05256e2.cif
_cod_data_source_block           I_CCDC2
_cod_depositor_comments
'Adding full bibliography for 7122090--7122092.cif.'
_cod_original_sg_symbol_H-M      'C 2/c '
_cod_database_code               7122092
_oxdiff_exptl_absorpt_empirical_full_min 0.904
_oxdiff_exptl_absorpt_empirical_full_max 1.123
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
;
_oxford_refine_reflns_threshold_expression_ref I>-10.0\s(I)