Synthesis and Structural Characterization of <i>N</i> -Heterocyclic Carbene Gold(I) Complexes
de Frémont, Pierre; Scott, Natalie M.; Stevens, Edwin D.; Nolan, Steven P.; Organometallics 24 (2005) 2411–2418; doi:10.1021/om050111c

data_1100864
_publ_section_title
;
 Synthesis and Structural Characterization of <i>N</i> -Heterocyclic
 Carbene Gold(I) Complexes
;
_journal_issue                   10
_journal_name_full               Organometallics
_journal_page_first              2411
_journal_page_last               2418
_journal_paper_doi               10.1021/om050111c
_journal_volume                  24
_journal_year                    2005
_chemical_formula_sum            'C30 H48 Au2 Cl2 N4'
_chemical_formula_weight         929.56
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 103.1440(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.5570(5)
_cell_length_b                   19.4416(10)
_cell_length_c                   17.6956(9)
_cell_measurement_reflns_used    32924
_cell_measurement_temperature    396(2)
_cell_measurement_theta_max      30.660
_cell_measurement_theta_min      2.189
_cell_volume                     3201.8(3)
_diffrn_ambient_temperature      396(2)
_diffrn_detector_area_resol_mean ?
_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_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0476
_diffrn_reflns_av_sigmaI/netI    0.0291
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            19002
_diffrn_reflns_theta_full        20.00
_diffrn_reflns_theta_max         20.00
_diffrn_reflns_theta_min         2.19
_diffrn_standards_decay_%        ?
_diffrn_standards_interval_count ?
_diffrn_standards_interval_time  ?
_diffrn_standards_number         ?
_exptl_absorpt_coefficient_mu    9.346
_exptl_absorpt_correction_T_max  1.000000
_exptl_absorpt_correction_T_min  0.360949
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   ?
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.928
_exptl_crystal_density_meas      0
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1792
_exptl_crystal_size_max          0.5
_exptl_crystal_size_mid          0.5
_exptl_crystal_size_min          0.4
_refine_diff_density_max         3.072
_refine_diff_density_min         -1.914
_refine_diff_density_rms         0.167
_refine_ls_extinction_coef       0.00210(11)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.079
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     154
_refine_ls_number_reflns         2987
_refine_ls_number_restraints     38
_refine_ls_restrained_S_all      1.073
_refine_ls_R_factor_all          0.0386
_refine_ls_R_factor_gt           0.0371
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0353P)^2^+63.5851P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0881
_refine_ls_wR_factor_ref         0.0888
_reflns_number_gt                2894
_reflns_number_total             2987
_reflns_threshold_expression     >2sigma(I)
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               1100864