Versatile Access to Martin's Spirosilanes and Their Hypervalent Derivatives.
Lenormand, Hugo; Corcé, Vincent; Sorin, Geoffroy; Chhun, Christine; Chamoreau, Lise-Marie; Krim, Lahouari; Zins, Emilie-Laure; Goddard, Jean-Philippe; Fensterbank, Louis; The Journal of organic chemistry 80 (2015) 3280–3288; doi:10.1021/jo5028497

data_4030765
_publ_section_title
;
 Versatile Access to Martin's Spirosilanes and Their Hypervalent
 Derivatives.
;
_journal_issue                   6
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              3280
_journal_page_last               3288
_journal_paper_doi               10.1021/jo5028497
_journal_volume                  80
_journal_year                    2015
_chemical_formula_moiety         'C20 H12 F12 O2 Si'
_chemical_formula_sum            'C20 H12 F12 O2 Si'
_chemical_formula_weight         540.39
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_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                 90.0050(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.4888(2)
_cell_length_b                   20.7278(5)
_cell_length_c                   13.8010(3)
_cell_measurement_reflns_used    9906
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      67.7
_cell_measurement_theta_min      5.9
_cell_volume                     2142.28(9)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'DIAMOND. Crystal Impact GbR, Bonn, Germany'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      200(2)
_diffrn_measured_fraction_theta_full 0.983
_diffrn_measured_fraction_theta_max 0.983
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0199
_diffrn_reflns_av_sigmaI/netI    0.0184
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            16339
_diffrn_reflns_theta_full        67.69
_diffrn_reflns_theta_max         67.69
_diffrn_reflns_theta_min         3.85
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.121
_exptl_absorpt_correction_T_max  0.753
_exptl_absorpt_correction_T_min  0.682
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS, Bruker AXS Inc., Madison, 
Wisconsin, USA. 
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.675
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1080
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.312
_refine_diff_density_min         -0.324
_refine_diff_density_rms         0.046
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.038
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     318
_refine_ls_number_reflns         3807
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.038
_refine_ls_R_factor_all          0.0409
_refine_ls_R_factor_gt           0.0393
_refine_ls_shift/su_max          0.005
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0533P)^2^+1.2216P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1039
_refine_ls_wR_factor_ref         0.1055
_reflns_number_gt                3609
_reflns_number_total             3807
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            jo5028497_si_001.cif
_cod_data_source_block           hl530f1_0ma
_cod_depositor_comments
'Adding full bibliography for 4030763--4030766.cif.'
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               4030765