Ionic-Type Reactivity of 1,3-Dibora-2,4-diphosphoniocyclobutane-1,3-diyls: Regio- and Stereoselective Addition of Hydracids
Gad Fuks; Nathalie Saffon; Laurent Maron; Guy Bertrand; Didier Bourissou; Journal of the American Chemical Society 131 (2009) 13681–13689; doi:10.1021/ja903746p

data_4105061
_publ_section_title
;
 Ionic-Type Reactivity of
 1,3-Dibora-2,4-diphosphoniocyclobutane-1,3-diyls: Regio- and
 Stereoselective Addition of Hydracids
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              13681
_journal_page_last               13689
_journal_paper_doi               10.1021/ja903746p
_journal_volume                  131
_journal_year                    2009
_chemical_formula_sum            'C21 H47 B2 F3 O3 P2 S'
_chemical_formula_weight         520.21
_space_group_IT_number           9
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'C -2yc'
_symmetry_space_group_name_H-M   'C 1 c 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                 108.8360(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.5692(7)
_cell_length_b                   16.1596(10)
_cell_length_c                   15.8662(10)
_cell_measurement_reflns_used    5331
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      26.386
_cell_measurement_theta_min      2.247
_cell_volume                     2807.4(3)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Bruker CCD detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0254
_diffrn_reflns_av_sigmaI/netI    0.0339
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            8203
_diffrn_reflns_theta_full        26.39
_diffrn_reflns_theta_max         26.39
_diffrn_reflns_theta_min         2.25
_exptl_absorpt_coefficient_mu    0.269
_exptl_absorpt_correction_T_max  1.000000
_exptl_absorpt_correction_T_min  0.673330
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker-AXS)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.231
_exptl_crystal_description       plate
_exptl_crystal_F_000             1120
_exptl_crystal_size_max          0.6
_exptl_crystal_size_mid          0.4
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.344
_refine_diff_density_min         -0.200
_refine_diff_density_rms         0.044
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.03(6)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.039
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     305
_refine_ls_number_reflns         4081
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.038
_refine_ls_R_factor_all          0.0344
_refine_ls_R_factor_gt           0.0313
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0542P)^2^+0.1247P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0777
_refine_ls_wR_factor_ref         0.0798
_reflns_number_gt                3848
_reflns_number_total             4081
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja903746p_si_005.cif
_cod_data_source_block           gad2am
_cod_depositor_comments
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The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'multi-scans' was replaced
with the value 'multi-scan' as specified in the replacement file
'src/cod-tools/trunk/data/replacement-values/replacement_values.lst'.

Automatic conversion script
Id: cif_fix_values 5376 2017-05-30 11:51:03Z andrius 
;
_cod_database_code               4105061