(<i>R</i>,<i>R</i>)-Ethylenebis[(2-methylphenyl)phenylphosphine oxide] (`<i>o</i>-Tolyl DiPAMPO')
King, Gary; Bergin, Enda; Müller-Bunz, Helge; Gilheany, Declan G.; Acta Crystallographica Section E 63 (2007) o3278–o3278; doi:10.1107/S1600536807029479

data_2214413
_publ_section_title
;
 (<i>R</i>,<i>R</i>)-Ethylenebis[(2-methylphenyl)phenylphosphine oxide]
 (`<i>o</i>-Tolyl DiPAMPO')
;
_journal_coeditor_code           WK2065
_journal_issue                   7
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o3278
_journal_page_last               o3278
_journal_paper_doi               10.1107/S1600536807029479
_journal_volume                  63
_journal_year                    2007
_chemical_formula_iupac          'C28 H28 O2 P2'
_chemical_formula_moiety         'C28 H28 O2 P2'
_chemical_formula_sum            'C28 H28 O2 P2'
_chemical_formula_weight         458.44
_chemical_name_systematic
;
(R,R)-Ethylenebis[(2-methylphenyl)phenylphosphine oxide]
;
_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                   5.7941(5)
_cell_length_b                   17.2455(15)
_cell_length_c                   23.012(2)
_cell_measurement_reflns_used    5179
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      30.84
_cell_measurement_theta_min      2.52
_cell_volume                     2299.4(3)
_computing_cell_refinement       SMART
_computing_data_collection       'SMART (Bruker, 1997)'
_computing_data_reduction        'SAINT (Bruker, 1997)'
_computing_molecular_graphics    'SHELXTL (Bruker, 1997)'
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker APEX CCD area-detector'
_diffrn_measurement_method       '\f and \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  0.0536
_diffrn_reflns_av_sigmaI/netI    0.0549
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       32
_diffrn_reflns_limit_l_min       -32
_diffrn_reflns_number            24918
_diffrn_reflns_theta_full        30.00
_diffrn_reflns_theta_max         30.00
_diffrn_reflns_theta_min         1.77
_exptl_absorpt_coefficient_mu    0.213
_exptl_absorpt_correction_T_max  0.9894
_exptl_absorpt_correction_T_min  0.7168
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.324
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       lath
_exptl_crystal_F_000             968
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.50
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.555
_refine_diff_density_min         -0.233
_refine_ls_abs_structure_details 'Flack (1983)'
_refine_ls_abs_structure_Flack   -0.02(8)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.085
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     289
_refine_ls_number_reflns         6693
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.085
_refine_ls_R_factor_all          0.0583
_refine_ls_R_factor_gt           0.0472
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0596P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1062
_refine_ls_wR_factor_ref         0.1131
_reflns_number_gt                5820
_reflns_number_total             6693
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            wk2065.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_database_code               2214413
_cod_database_fobs_code          2214413