[μ-Bis(diphenylarsino)methane-1:2κ^2^<i>As</i>:<i>As</i>]decacarbonyl-1κ^3^<i>C</i>,2κ^3^<i>C</i>,3κ^4^<i>C</i>-<i>triangulo</i>-triosmium(0)
bin Shawkataly, Omar; Khan, Imthyaz Ahmed; Sirat, Siti Syaida; Quah, Ching Kheng; Fun, Hoong-Kun; Acta Crystallographica Section E 68 (2012) m1119–m1120; doi:10.1107/S1600536812024208

data_2235827
_publ_section_title
;
 [\m-Bis(diphenylarsino)methane-1:2\k^2^<i>As</i>:<i>As</i>]decacarbonyl-1\k^3^<i>C</i>,2\k^3^<i>C</i>,3\k^4^<i>C</i>-<i>triangulo</i>-triosmium(0)
;
_journal_coeditor_code           HB6822
_journal_issue                   8
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              m1119
_journal_page_last               m1120
_journal_paper_doi               10.1107/S1600536812024208
_journal_volume                  68
_journal_year                    2012
_chemical_formula_iupac          '[Os3 (C25 H22 As2) (C O)10]'
_chemical_formula_moiety         'C35 H22 As2 O10 Os3'
_chemical_formula_sum            'C35 H22 As2 O10 Os3'
_chemical_formula_weight         1322.97
_chemical_name_systematic
;
[\m-Bis(diphenylarsino)methane-1:2\k^2^<i>As</i>:<i>As</i>]decacarbonyl-
1\k^3^<i>C</i>,2\k^3^<i>C</i>,3\k^4^<i>C</i>-<i>triangulo</i>-triosmium(0)
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.2965(4)
_cell_length_b                   15.3594(5)
_cell_length_c                   20.6641(7)
_cell_measurement_reflns_used    9235
_cell_measurement_temperature    100
_cell_measurement_theta_max      35.03
_cell_measurement_theta_min      3.47
_cell_volume                     3585.4(2)
_computing_cell_refinement       'SAINT (Bruker, 2009)'
_computing_data_collection       'APEX2 (Bruker, 2009)'
_computing_data_reduction        'SAINT (Bruker, 2009)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material
'SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009)'
_computing_structure_refinement  'SHELXTL (Sheldrick, 2008)'
_computing_structure_solution    'SHELXTL (Sheldrick, 2008)'
_diffrn_ambient_temperature      100
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Bruker SMART APEXII DUO 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  0.0382
_diffrn_reflns_av_sigmaI/netI    0.0267
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -33
_diffrn_reflns_number            113235
_diffrn_reflns_theta_full        35.24
_diffrn_reflns_theta_max         35.24
_diffrn_reflns_theta_min         1.65
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    12.493
_exptl_absorpt_correction_T_max  0.4237
_exptl_absorpt_correction_T_min  0.1261
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(<i>SADABS</i>; Bruker, 2009)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    2.451
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2424
_exptl_crystal_size_max          0.283
_exptl_crystal_size_mid          0.192
_exptl_crystal_size_min          0.083
_refine_diff_density_max         2.146
_refine_diff_density_min         -0.656
_refine_ls_abs_structure_details 'Flack (1983), 7211 Friedel pairs'
_refine_ls_abs_structure_Flack   0.003(4)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.030
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     451
_refine_ls_number_reflns         15930
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.030
_refine_ls_R_factor_all          0.0193
_refine_ls_R_factor_gt           0.0177
_refine_ls_shift/su_max          0.004
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0183P)^2^+0.1317P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0397
_refine_ls_wR_factor_ref         0.0401
_reflns_number_gt                15315
_reflns_number_total             15930
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            hb6822.cif
_cod_data_source_block           I
_cod_database_code               2235827
_cod_database_fobs_code          2235827