Reactions of trichlorogermane HGeCl3 and dichlorogallane HGaCl2 with pyridine donors
Nogai, Stefan; Schriewer, Alexander; Schmidbaur, Hubert; Dalton Transactions  (2003) 3165–; doi:10.1039/b305792e

data_7013240
_publ_section_title
;
 Reactions of trichlorogermane HGeCl3 and dichlorogallane HGaCl2 with
 pyridine donors
;
_journal_issue                   16
_journal_name_full               'Dalton Transactions'
_journal_page_first              3165
_journal_paper_doi               10.1039/b305792e
_journal_year                    2003
_chemical_formula_sum            'C10 H11 Cl4 Ga N2'
_chemical_formula_weight         370.73
_space_group_IT_number           36
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'C 2c -2'
_symmetry_space_group_name_H-M   'C m c 21'
_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                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.0480(4)
_cell_length_b                   12.1395(7)
_cell_length_c                   13.4546(6)
_cell_measurement_reflns_used    22132
_cell_measurement_temperature    143(2)
_cell_volume                     1477.83(13)
_computing_cell_refinement       DENZO
_computing_data_collection       XPRESS
_computing_data_reduction        SCALEPACK
_computing_molecular_graphics    SHELXTL-PLUS
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      143(2)
_diffrn_measured_fraction_theta_full 0.943
_diffrn_measured_fraction_theta_max 0.943
_diffrn_measurement_device_type  'NONIUS DIP 2020'
_diffrn_measurement_method       phi-rotation
_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  0.070
_diffrn_reflns_av_sigmaI/netI    0.0401
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            22132
_diffrn_reflns_theta_full        25.43
_diffrn_reflns_theta_max         25.43
_diffrn_reflns_theta_min         3.19
_exptl_absorpt_coefficient_mu    2.564
_exptl_absorpt_correction_T_max  0.890
_exptl_absorpt_correction_T_min  0.629
_exptl_absorpt_correction_type   refdelf
_exptl_absorpt_process_details
;
(See: Walker, N. & Stuart, D. (1983) Acta Cryst. A39, 158-166)
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.666
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             736
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.328
_refine_diff_density_min         -0.531
_refine_diff_density_rms         0.066
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.009(15)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.114
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     110
_refine_ls_number_reflns         1367
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.113
_refine_ls_R_factor_all          0.0280
_refine_ls_R_factor_gt           0.0260
_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^)+(0.0057P)^2^+1.5245P] where P==(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0552
_refine_ls_wR_factor_ref         0.0560
_reflns_number_gt                1316
_reflns_number_total             1367
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b305792e.txt
_cod_data_source_block           alex2
_cod_original_sg_symbol_H-M      Cmc2(1)
_cod_database_code               7013240