Hydrogallation of Alkynes with H-GaCl2: Formation of Organoelement Dichlorogallium Compounds Potentially Applicable as Chelating Lewis Acids
Werner Uhl; Michael Claesener; Inorganic Chemistry 47 (2008) 4463–4470; doi:10.1021/ic700767a

data_4303963
_publ_section_title
;
Hydrogallation of Alkynes with H-GaCl2: Formation of Organoelement
Dichlorogallium Compounds Potentially Applicable as Chelating Lewis Acids
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              4463
_journal_page_last               4470
_journal_paper_doi               10.1021/ic700767a
_journal_volume                  47
_journal_year                    2008
_chemical_formula_sum            'C28 H44 Cl4 Ga2 Si2'
_chemical_formula_weight         718.05
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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                 92.645(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.6122(10)
_cell_length_b                   15.8246(16)
_cell_length_c                   22.638(2)
_cell_measurement_temperature    153(2)
_cell_volume                     3439.8(6)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      153(2)
_diffrn_measured_fraction_theta_full 0.941
_diffrn_measured_fraction_theta_max 0.941
_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  0.0405
_diffrn_reflns_av_sigmaI/netI    0.0424
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       32
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            19941
_diffrn_reflns_theta_full        31.33
_diffrn_reflns_theta_max         31.33
_diffrn_reflns_theta_min         1.80
_exptl_absorpt_coefficient_mu    1.963
_exptl_crystal_density_diffrn    1.387
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             1480
_refine_diff_density_max         0.444
_refine_diff_density_min         -0.347
_refine_diff_density_rms         0.079
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.014
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     167
_refine_ls_number_reflns         5316
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.014
_refine_ls_R_factor_all          0.0488
_refine_ls_R_factor_gt           0.0360
_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^)+(0.0422P)^2^+1.6184P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0831
_refine_ls_wR_factor_ref         0.0880
_reflns_number_gt                4335
_reflns_number_total             5316
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic700767a-6.cif
_cod_data_source_block           sad_compound_6
_cod_database_code               4303963