Aryl-NHC-group 13 trimethyl complexes: structural, stability and bonding insights.
Wu, Melissa M.; Gill, Arran M.; Yunpeng, Lu; Yongxin, Li; Ganguly, Rakesh; Falivene, Laura; García, Felipe; Dalton transactions (Cambridge, England : 2003) 46 (2017) 854–864; doi:10.1039/c6dt04448d

data_7041452
_publ_section_title
;
 Aryl-NHC-group 13 trimethyl complexes: structural, stability and bonding
 insights.
;
_journal_issue                   3
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              854
_journal_page_last               864
_journal_paper_doi               10.1039/c6dt04448d
_journal_volume                  46
_journal_year                    2017
_chemical_formula_sum            'C30 H45 Ga N2'
_chemical_formula_weight         503.40
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_audit_update_record
;
2016-05-03 deposited with the CCDC.
2016-12-13 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 111.4316(16)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   16.6315(8)
_cell_length_b                   19.4897(10)
_cell_length_c                   19.2354(10)
_cell_measurement_reflns_used    5374
_cell_measurement_temperature    103.(2)
_cell_measurement_theta_max      21.1648
_cell_measurement_theta_min      2.7795
_cell_volume                     5803.9(5)
_computing_cell_refinement       'SAINT V8.34A (Bruker AXS Inc., 2013)'
_computing_data_collection       'APEX2 (Bruker AXS Inc., 2014)'
_computing_data_reduction        'SAINT V8.34A (Bruker AXS Inc., 2013)'
_computing_molecular_graphics    'XP (Bruker AXS Inc., 2014)'
_computing_publication_material  'APEX2 (Bruker AXS Inc., 2014)'
_computing_structure_refinement  'SHELXL-2014/6 (Sheldrick, 2014)'
_diffrn_ambient_temperature      103.(2)
_diffrn_detector_area_resol_mean 8.3333
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1122
_diffrn_reflns_av_unetI/netI     0.0915
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -25
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            84170
_diffrn_reflns_theta_full        27.75
_diffrn_reflns_theta_max         27.75
_diffrn_reflns_theta_min         1.31
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    0.967
_exptl_absorpt_correction_T_max  0.84
_exptl_absorpt_correction_T_min  0.69
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS V2014/4 (Bruker AXS Inc.)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.152
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2160
_exptl_crystal_size_max          0.240
_exptl_crystal_size_mid          0.200
_exptl_crystal_size_min          0.180
_refine_diff_density_max         1.103
_refine_diff_density_min         -1.091
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.045
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     617
_refine_ls_number_reflns         13658
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.045
_refine_ls_R_factor_all          0.1061
_refine_ls_R_factor_gt           0.0530
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0989P)^2^+0.7682P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1319
_refine_ls_wR_factor_ref         0.1875
_reflns_number_gt                8786
_reflns_number_total             13658
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c6dt04448d2.cif
_cod_data_source_block           I_IPrGa
_cod_depositor_comments
'Adding full bibliography for 7041446--7041453.cif.'
_cod_database_code               7041452
_shelx_res_checksum              89927