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_4328259
_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 Cl2'
_chemical_formula_sum            'C26 H24 As2 Au2 Cl2'
_chemical_formula_weight         951.12
_chemical_name_common            \b-Au2[1,2bis(diphenylarsine)ethane]Cl2
_chemical_name_systematic
; 
 ? 
;
_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                85.9628(7)
_cell_angle_beta                 80.4396(7)
_cell_angle_gamma                69.7158(7)
_cell_formula_units_Z            4
_cell_length_a                   11.4453(6)
_cell_length_b                   11.5553(6)
_cell_length_c                   21.0671(11)
_cell_measurement_reflns_used    3969
_cell_measurement_temperature    90(2)
_cell_measurement_theta_max      30.49
_cell_measurement_theta_min      2.73
_cell_volume                     2576.9(2)
_computing_cell_refinement       'SAINT (7.68A) (Bruker, 2009)'
_computing_data_collection       'Apex2 (2010.9) (Bruker, 2010)'
_computing_data_reduction        'SAINT (7.68A) (Bruker, 2009)'
_computing_molecular_graphics    'SHELXTL 5.1, XP (Sheldrick, 1994)'
_computing_publication_material  SHELXL97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      90(2)
_diffrn_measured_fraction_theta_full 0.986
_diffrn_measured_fraction_theta_max 0.986
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w 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  0.0000
_diffrn_reflns_av_sigmaI/netI    0.0370
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            15503
_diffrn_reflns_theta_full        30.49
_diffrn_reflns_theta_max         30.49
_diffrn_reflns_theta_min         2.52
_exptl_absorpt_coefficient_mu    14.143
_exptl_absorpt_correction_T_max  0.2817
_exptl_absorpt_correction_T_min  0.1552
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'TWINABS V2008/4 (Sheldrick, 2008)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    2.452
_exptl_crystal_description       Block
_exptl_crystal_F_000             1752
_exptl_crystal_size_max          0.21
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.12
_refine_diff_density_max         2.665
_refine_diff_density_min         -1.549
_refine_diff_density_rms         0.190
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.023
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     578
_refine_ls_number_reflns         15503
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.023
_refine_ls_R_factor_all          0.0376
_refine_ls_R_factor_gt           0.0278
_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^)+(0.0269P)^2^+2.3628P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0605
_refine_ls_wR_factor_ref         0.0637
_reflns_number_gt                13144
_reflns_number_total             15503
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic2022165_si_001_2.cif
_cod_data_source_block           sh178
_cod_database_code               4328259