Ligand "Brackets" for Ga-Ga Bond.
Fedushkin, Igor L.; Skatova, Alexandra A.; Dodonov, Vladimir A.; Yang, Xiao-Juan; Chudakova, Valentina A.; Piskunov, Alexander V.; Demeshko, Serhiy; Baranov, Evgeny V.; Inorganic chemistry 55 (2016) 9047–9056; doi:10.1021/acs.inorgchem.6b01514

data_4348684
_publ_section_title
;
 Ligand &quot;Brackets&quot; for Ga-Ga Bond.
;
_journal_issue                   17
_journal_name_full               'Inorganic chemistry'
_journal_page_first              9047
_journal_page_last               9056
_journal_paper_doi               10.1021/acs.inorgchem.6b01514
_journal_volume                  55
_journal_year                    2016
_chemical_formula_sum            'C84 H86 Ga2 N4 O3'
_chemical_formula_weight         1339.00
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                90
_cell_angle_beta                 117.365(4)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   23.8688(4)
_cell_length_b                   14.9155(3)
_cell_length_c                   22.1366(4)
_cell_measurement_reflns_used    900
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      30
_cell_measurement_theta_min      2
_cell_volume                     6999.1(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-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'omega scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0348
_diffrn_reflns_av_unetI/netI     0.0280
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       29
_diffrn_reflns_limit_h_min       -29
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            29813
_diffrn_reflns_point_group_measured_fraction_full 0.997
_diffrn_reflns_point_group_measured_fraction_max 0.997
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.000
_diffrn_reflns_theta_min         1.716
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    0.823
_exptl_absorpt_correction_T_max  0.880
_exptl_absorpt_correction_T_min  0.674
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 1998)'
_exptl_crystal_colour            dark_red
_exptl_crystal_density_diffrn    1.271
_exptl_crystal_description       prism
_exptl_crystal_F_000             2816
_exptl_crystal_size_max          0.300
_exptl_crystal_size_mid          0.260
_exptl_crystal_size_min          0.160
_refine_diff_density_max         0.704
_refine_diff_density_min         -0.268
_refine_diff_density_rms         0.061
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.041
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     429
_refine_ls_number_reflns         6865
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.041
_refine_ls_R_factor_all          0.0436
_refine_ls_R_factor_gt           0.0344
_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^)+(0.0513P)^2^+4.4806P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0854
_refine_ls_wR_factor_ref         0.0900
_reflns_Friedel_coverage         0.000
_reflns_number_gt                5831
_reflns_number_total             6865
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ic6b01514_si_004.cif
_cod_data_source_block           gabian13m
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               4348684
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.790
_shelx_estimated_absorpt_t_max   0.880
_shelx_res_checksum              65080
_shelx_hkl_checksum              75176