The reactions of dialkylgallium hydrides with tert-butylethynylbenzenes‒a systematic investigation into the course of hydrogallation reactions.
Uhl, Werner; Claesener, Michael; Haddadpour, Sima; Jasper, Beate; Hepp, Alexander; Dalton transactions (Cambridge, England : 2003)  (2007) 417–423; doi:10.1039/b614003c

data_7004961
_publ_section_title
;
 The reactions of dialkylgallium hydrides with
 tert-butylethynylbenzenes--a systematic investigation into the course
 of hydrogallation reactions.
;
_journal_issue                   4
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              417
_journal_page_last               423
_journal_paper_doi               10.1039/b614003c
_journal_year                    2007
_chemical_formula_sum            'C75 H123 Ga3'
_chemical_formula_weight         1233.89
_chemical_name_systematic
;
?
;
_space_group_IT_number           165
_symmetry_space_group_name_Hall  '-P 3 2"c'
_symmetry_space_group_name_H-M   'P -3 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                 90.00
_cell_angle_gamma                120.00
_cell_formula_units_Z            4
_cell_length_a                   17.6535(3)
_cell_length_b                   17.6535(3)
_cell_length_c                   25.9914(4)
_cell_measurement_reflns_used    'all measured'
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      70.07
_cell_measurement_theta_min      2.89
_cell_volume                     7014.9(2)
_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      100(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'omega 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  0.0739
_diffrn_reflns_av_sigmaI/netI    0.0613
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            39035
_diffrn_reflns_theta_full        70.07
_diffrn_reflns_theta_max         70.07
_diffrn_reflns_theta_min         2.89
_exptl_absorpt_coefficient_mu    1.619
_exptl_absorpt_correction_T_max  1
_exptl_absorpt_correction_T_min  0.8112
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_density_diffrn    1.168
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             2664
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.19
_exptl_crystal_size_min          0.14
_refine_diff_density_max         0.630
_refine_diff_density_min         -0.521
_refine_diff_density_rms         0.082
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.858
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     242
_refine_ls_number_reflns         4456
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.858
_refine_ls_R_factor_all          0.0613
_refine_ls_R_factor_gt           0.0424
_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^)+(0.0683P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1039
_refine_ls_wR_factor_ref         0.1088
_reflns_number_gt                3096
_reflns_number_total             4456
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b614003c.txt
_cod_data_source_block           Uhl-2b
_cod_original_sg_symbol_H-M      P-3c1
_cod_database_code               7004961