Synthesis and characterisation of anionic and neutral gallium(i) N-heterocyclic carbene analogues.
Dange, Deepak; Choong, Sam L.; Schenk, Christian; Stasch, Andreas; Jones, Cameron; Dalton transactions (Cambridge, England : 2003) 41 (2012) 9304–9315; doi:10.1039/c2dt30299c

data_7019714
_publ_section_title
;
 Synthesis and characterisation of anionic and neutral gallium(i)
 N-heterocyclic carbene analogues.
;
_journal_issue                   31
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              9304
_journal_page_last               9315
_journal_paper_doi               10.1039/c2dt30299c
_journal_volume                  41
_journal_year                    2012
_chemical_formula_sum            'C68 H56 N2'
_chemical_formula_weight         901.15
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                99.63(3)
_cell_angle_beta                 103.84(3)
_cell_angle_gamma                99.14(3)
_cell_formula_units_Z            1
_cell_length_a                   9.1640(18)
_cell_length_b                   10.472(2)
_cell_length_c                   13.747(3)
_cell_measurement_temperature    173(2)
_cell_volume                     1235.3(5)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'Oxford Gemini Ultra'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Enhance (Mo) X-ray Source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0768
_diffrn_reflns_av_sigmaI/netI    0.1241
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            8046
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         3.06
_exptl_absorpt_coefficient_mu    0.069
_exptl_absorpt_correction_T_max  0.997
_exptl_absorpt_correction_T_min  0.985
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SCALE3 ABSPACK'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.211
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             478
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.03
_refine_diff_density_max         0.183
_refine_diff_density_min         -0.158
_refine_diff_density_rms         0.043
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.971
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     317
_refine_ls_number_reflns         4316
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.971
_refine_ls_R_factor_all          0.1615
_refine_ls_R_factor_gt           0.0597
_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^)+(0.0662P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1196
_refine_ls_wR_factor_ref         0.1550
_reflns_number_gt                2062
_reflns_number_total             4316
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2dt30299c.txt
_cod_data_source_block           compound1S
_cod_original_cell_volume        1235.3(4)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7019714