Dinuclear gold(I) complexes of bridging bidentate carbene ligands: synthesis, structure and spectroscopic characterisation.
Barnard, Peter J.; Baker, Murray V.; Berners-Price, Susan J; Skelton, Brian W.; White, Allan H.; Dalton transactions (Cambridge, England : 2003)  (2004) 1038–1047; doi:10.1039/b316804b

data_7013969
_publ_section_title
;
 Dinuclear gold(I) complexes of bridging bidentate carbene ligands:
 synthesis, structure and spectroscopic characterisation.
;
_journal_issue                   7
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              1038
_journal_page_last               1047
_journal_paper_doi               10.1039/b316804b
_journal_year                    2004
_chemical_formula_moiety         'C44 H40 Au2 N8, 2(C2 H3 N), 2Br'
_chemical_formula_sum            'C48 H46 Au2 Br2 N10'
_chemical_formula_weight         1316.71
_space_group_IT_number           29
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2ac'
_symmetry_space_group_name_H-M   'P c a 21'
_audit_creation_date             02-09-01
_audit_creation_method           Xtal3.6
_cell_angle_alpha                90.00000
_cell_angle_beta                 90.00000
_cell_angle_gamma                90.00000
_cell_formula_units_Z            4
_cell_length_a                   14.5840(10)
_cell_length_b                   12.3369(9)
_cell_length_c                   24.899(2)
_cell_measurement_reflns_used    8192
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      24.5
_cell_measurement_theta_min      1.6
_cell_volume                     4479.9(6)
_computing_cell_refinement       'Siemens SAINT (Siemens, 1995)'
_computing_data_collection       'Siemens SMART (Siemens, 1995)'
_computing_data_reduction        'xtal ADDREF SORTRF'
_computing_molecular_graphics    xtal
_computing_publication_material  'xtal BONDLA CIFIO'
_computing_structure_refinement  'xtal CRYLSQ'
_computing_structure_solution    xtal
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 1.0
_diffrn_measured_fraction_theta_max 1.0
_diffrn_measurement_device_type
;
Bruker SMART CCD diffractometer
;
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_detector       'CCD area detector'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'sealed tube'
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     .71073
_diffrn_reflns_av_R_equivalents  .032
_diffrn_reflns_av_sigmaI/netI    .074
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       42
_diffrn_reflns_limit_l_min       -42
_diffrn_reflns_number            93581
_diffrn_reflns_theta_full        37.56
_diffrn_reflns_theta_max         37.56
_diffrn_reflns_theta_min         1.64
_diffrn_standards_decay_%        0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    8.373
_exptl_absorpt_correction_T_max  .78
_exptl_absorpt_correction_T_min  .42
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS; Sheldrick, 1996
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.952
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             2528
_exptl_crystal_size_max          .32
_exptl_crystal_size_mid          .18
_exptl_crystal_size_min          .11
_refine_diff_density_max         2.898
_refine_diff_density_min         -2.038
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_all   .957
_refine_ls_goodness_of_fit_ref   1.029
_refine_ls_hydrogen_treatment    noref
_refine_ls_matrix_type           full
_refine_ls_number_constraints    0
_refine_ls_number_parameters     558
_refine_ls_number_reflns         9299
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          .05
_refine_ls_R_factor_gt           .032
_refine_ls_shift/su_max          .007
_refine_ls_shift/su_mean         .0001
_refine_ls_structure_factor_coef F
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         .031
_refine_ls_wR_factor_ref         .029
_reflns_d_resolution_high        .583
_reflns_d_resolution_low         12.419
_reflns_Friedel_coverage         0
_reflns_limit_h_max              24
_reflns_limit_h_min              0
_reflns_limit_k_max              21
_reflns_limit_k_min              0
_reflns_limit_l_max              42
_reflns_limit_l_min              0
_reflns_number_gt                9299
_reflns_number_total             12009
_reflns_threshold_expression     'F    > 4.00 sig(F   )'
_cod_data_source_file            b316804b.txt
_cod_data_source_block           pb1p36
_cod_original_sg_symbol_Hall     p_2c_-2ac
_cod_original_sg_symbol_H-M      P_c_a_21
_cod_database_code               7013969