The influence of halogen substituents on the course of hydrogallation and hydroalumination reactions
Uhl, Werner; Claesener, Michael; Hepp, Alexander; Jasper, Beate; Vinogradov, Andrej; van Wüllen, Leo; Köster, Thomas K.-J.; Dalton Transactions  (2009) 10550–10562; doi:10.1039/b913568e

data_7002919
_publ_section_title
;
 The influence of halogen substituents on the course of hydrogallation
 and hydroalumination reactions
;
_journal_issue                   47
_journal_name_full               'Dalton Transactions'
_journal_page_first              10550
_journal_page_last               10562
_journal_paper_doi               10.1039/b913568e
_journal_year                    2009
_chemical_formula_sum            'C22 H28 Br2 Cl4 Ga2 Si2'
_chemical_formula_weight         789.68
_chemical_name_systematic
;
?
;
_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                109.544(2)
_cell_angle_beta                 95.946(2)
_cell_angle_gamma                97.350(2)
_cell_formula_units_Z            2
_cell_length_a                   10.0545(10)
_cell_length_b                   11.9883(12)
_cell_length_c                   14.4057(15)
_cell_measurement_reflns_used    5326
_cell_measurement_temperature    153(2)
_cell_measurement_theta_max      28.463
_cell_measurement_theta_min      2.367
_cell_volume                     1602.9(3)
_computing_cell_refinement       'Bruker SAINT'
_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      153(2)
_diffrn_measured_fraction_theta_full 0.904
_diffrn_measured_fraction_theta_max 0.904
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0392
_diffrn_reflns_av_sigmaI/netI    0.0681
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            18567
_diffrn_reflns_theta_full        31.25
_diffrn_reflns_theta_max         31.25
_diffrn_reflns_theta_min         1.52
_exptl_absorpt_coefficient_mu    4.592
_exptl_absorpt_correction_T_max  0.8376
_exptl_absorpt_correction_T_min  0.2610
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.636
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             776
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.04
_refine_diff_density_max         1.754
_refine_diff_density_min         -1.845
_refine_diff_density_rms         0.150
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.991
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     295
_refine_ls_number_reflns         9457
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.991
_refine_ls_R_factor_all          0.1086
_refine_ls_R_factor_gt           0.0650
_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^)+(0.1214P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1763
_refine_ls_wR_factor_ref         0.2023
_reflns_number_gt                5690
_reflns_number_total             9457
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b913568e.txt
_cod_data_source_block           sad2
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7002919