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_7019715
_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            'C33 H29 N'
_chemical_formula_weight         439.57
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 93.139(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.5232(15)
_cell_length_b                   11.2997(15)
_cell_length_c                   22.111(3)
_cell_measurement_temperature    123(2)
_cell_volume                     2375.8(6)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_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  0.1468
_diffrn_reflns_av_sigmaI/netI    0.1625
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            16304
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.91
_exptl_absorpt_coefficient_mu    0.070
_exptl_absorpt_correction_T_max  0.993
_exptl_absorpt_correction_T_min  0.988
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SCALE3 ABSPACK'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.229
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             936
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.282
_refine_diff_density_min         -0.309
_refine_diff_density_rms         0.059
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.948
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     310
_refine_ls_number_reflns         4181
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.948
_refine_ls_R_factor_all          0.1599
_refine_ls_R_factor_gt           0.0657
_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^)+(0.0562P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1235
_refine_ls_wR_factor_ref         0.1529
_reflns_number_gt                2044
_reflns_number_total             4181
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2dt30299c.txt
_cod_data_source_block           compound2S
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               7019715