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_4105058
_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            'C20 H47 B2 Cl P2'
_chemical_formula_weight         406.59
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                92.369(2)
_cell_angle_beta                 96.916(2)
_cell_angle_gamma                97.929(2)
_cell_formula_units_Z            4
_cell_length_a                   9.7254(9)
_cell_length_b                   11.3862(11)
_cell_length_c                   22.736(2)
_cell_measurement_reflns_used    3167
_cell_measurement_temperature    133(2)
_cell_measurement_theta_max      25.603
_cell_measurement_theta_min      2.207
_cell_volume                     2471.2(4)
_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      133(2)
_diffrn_measured_fraction_theta_full 0.984
_diffrn_measured_fraction_theta_max 0.984
_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  0.0416
_diffrn_reflns_av_sigmaI/netI    0.0882
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            11077
_diffrn_reflns_theta_full        23.26
_diffrn_reflns_theta_max         23.26
_diffrn_reflns_theta_min         5.10
_exptl_absorpt_coefficient_mu    0.287
_exptl_absorpt_correction_T_max  1.000000
_exptl_absorpt_correction_T_min  0.315995
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker-AXS)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.093
_exptl_crystal_description       plate
_exptl_crystal_F_000             896
_exptl_crystal_size_max          0.5
_exptl_crystal_size_mid          0.3
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.806
_refine_diff_density_min         -0.322
_refine_diff_density_rms         0.061
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.008
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     505
_refine_ls_number_reflns         6983
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.008
_refine_ls_R_factor_all          0.1035
_refine_ls_R_factor_gt           0.0589
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0752P)^2^+0.0350P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1283
_refine_ls_wR_factor_ref         0.1462
_reflns_number_gt                4617
_reflns_number_total             6983
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja903746p_si_002.cif
_cod_data_source_block           gad1m
_cod_depositor_comments
;
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_original_cell_volume        2471.1(4)
_cod_database_code               4105058