1,2,3,4-Tetraphenyl-1,2,3,4-tetraphospholane, a Highly Versatile Cyclocarbaphosphine Ligand: Reactions with Activated Triosmium Clusters and Characterization of the Products
Siau-Gek Ang; Zhong; How-Ghee Ang; Inorganic Chemistry 41 (2002) 3791–3800; doi:10.1021/ic025589c

data_4318220
_publ_section_title
;
 1,2,3,4-Tetraphenyl-1,2,3,4-tetraphospholane, a Highly Versatile
 Cyclocarbaphosphine Ligand: Reactions with Activated Triosmium Clusters
 and Characterization of the Products
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              3791
_journal_page_last               3800
_journal_paper_doi               10.1021/ic025589c
_journal_volume                  41
_journal_year                    2002
_chemical_formula_sum            'C48 H24 Cl2 O22 Os6 P4'
_chemical_formula_weight         2288.65
_chemical_name_systematic
;
   ?
;
_space_group_IT_number           33
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2n'
_symmetry_space_group_name_H-M   'P n a 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                   29.6352(7)
_cell_length_b                   16.3231(3)
_cell_length_c                   12.3117(3)
_cell_measurement_reflns_used    38320
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      29.46
_cell_measurement_theta_min      1.86
_cell_volume                     5955.6(2)
_computing_cell_refinement       'Siemens XSCANS'
_computing_data_collection       'Siemens XSCANS'
_computing_data_reduction        'Siemens XSCANS'
_computing_molecular_graphics    'Siemens SHELXTL'
_computing_publication_material  'Siemens SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.930
_diffrn_measured_fraction_theta_max 0.930
_diffrn_measurement_device_type  'Siemens P4'
_diffrn_measurement_method       '\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  0.0715
_diffrn_reflns_av_sigmaI/netI    0.0818
_diffrn_reflns_limit_h_max       39
_diffrn_reflns_limit_h_min       -30
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            38320
_diffrn_reflns_theta_full        29.46
_diffrn_reflns_theta_max         29.46
_diffrn_reflns_theta_min         1.86
_exptl_absorpt_coefficient_mu    13.021
_exptl_absorpt_correction_T_max  0.091683
_exptl_absorpt_correction_T_min  0.039596
_exptl_absorpt_correction_type   'Sadabs (Sheldrick, 1996)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    2.552
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             4152
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.24
_refine_diff_density_max         1.714
_refine_diff_density_min         -1.019
_refine_diff_density_rms         0.170
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.010(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.037
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     739
_refine_ls_number_reflns         12789
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.037
_refine_ls_R_factor_all          0.0927
_refine_ls_R_factor_gt           0.0494
_refine_ls_shift/su_max          0.027
_refine_ls_shift/su_mean         0.002
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0266P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0752
_refine_ls_wR_factor_ref         0.0873
_reflns_number_gt                8645
_reflns_number_total             12789
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic025589c_4.cif
_cod_data_source_block           3y
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to the built-in table from CIF Core
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
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_cod_database_code               4318220