Polymorphs and Aurophilic Interactions in Colorless Crystals of Au2(μ-1,2 bis-(diphenylarsino)ethane)X2, (X = Cl, Br, I)
Sang Ho Lim; Marilyn M. Olmstead; James C. Fettinger; Alan L. Balch; Inorganic Chemistry 51 (2012) 1925–1932; doi:10.1021/ic2022165

data_4328262
_publ_section_title
;
 Polymorphs and Aurophilic Interactions in Colorless Crystals of
 Au2(\m-1,2 bis-(diphenylarsino)ethane)X2, (X = Cl, Br, I)
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              1925
_journal_page_last               1932
_journal_paper_doi               10.1021/ic2022165
_journal_volume                  51
_journal_year                    2012
_chemical_formula_moiety         'C26 H24 As2 Au2 I2'
_chemical_formula_sum            'C26 H24 As2 Au2 I2'
_chemical_formula_weight         1134.03
_chemical_name_common            \a-Au2[1,2bis(diphenylarsine)ethane]I2
_chemical_name_systematic
; 
 ? 
;
_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
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 111.741(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.0586(4)
_cell_length_b                   11.7775(4)
_cell_length_c                   19.7245(5)
_cell_measurement_reflns_used    9057
_cell_measurement_temperature    90(2)
_cell_measurement_theta_max      27.52
_cell_measurement_theta_min      2.22
_cell_volume                     2817.80(15)
_computing_cell_refinement       SAINT
_computing_data_collection       'SMART 5.054 (Bruker, 2003)'
_computing_data_reduction        'SAINT 6.45A (Bruker, 2003)'
_computing_molecular_graphics    'SHELXTL 5.1, XP (Sheldrick, 1994)'
_computing_publication_material  'SHELXS-97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      90(2)
_diffrn_detector_area_resol_mean 8.3
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker SMART 1000'
_diffrn_measurement_method       \w
_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  0.0297
_diffrn_reflns_av_sigmaI/netI    0.0220
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            30594
_diffrn_reflns_theta_full        27.54
_diffrn_reflns_theta_max         27.54
_diffrn_reflns_theta_min         1.68
_exptl_absorpt_coefficient_mu    14.936
_exptl_absorpt_correction_T_max  0.167
_exptl_absorpt_correction_T_min  0.039
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS 2.10 (Sheldrick, 2003)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    2.673
_exptl_crystal_description       plate
_exptl_crystal_F_000             2040
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.630
_refine_diff_density_min         -0.637
_refine_diff_density_rms         0.112
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.081
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     289
_refine_ls_number_reflns         6484
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.081
_refine_ls_R_factor_all          0.0178
_refine_ls_R_factor_gt           0.0151
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0094P)^2^+2.4052P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0333
_refine_ls_wR_factor_ref         0.0341
_reflns_number_gt                6015
_reflns_number_total             6484
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic2022165_si_001_5.cif
_cod_data_source_block           sh171
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4328262