Tris(4-<i>tert</i>-butylphenyl)phosphine oxide
Hao, Yin-Ge; Yao, Jin-Cai; Li, Jun-Xian; He, Yu-Xin; Zhang, Yu-Qing; Acta Crystallographica Section E 66 (2010) o211–; doi:10.1107/S1600536809052155

data_2224761
_publ_section_title
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 Tris(4-<i>tert</i>-butylphenyl)phosphine oxide
;
_journal_coeditor_code           SI2225
_journal_issue                   1
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o211
_journal_paper_doi               10.1107/S1600536809052155
_journal_volume                  66
_journal_year                    2010
_chemical_formula_iupac          'C30 H39 O P'
_chemical_formula_moiety         'C30 H39 O P'
_chemical_formula_sum            'C30 H39 O P'
_chemical_formula_weight         446.58
_chemical_name_systematic
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Tris(4-<i>tert</i>-butylphenyl)phosphine oxide
;
_space_group_IT_number           62
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2n'
_symmetry_space_group_name_H-M   'P n m a'
_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                   11.7986(10)
_cell_length_b                   20.9246(18)
_cell_length_c                   10.5204(9)
_cell_measurement_reflns_used    5668
_cell_measurement_temperature    294(2)
_cell_measurement_theta_max      28.07
_cell_measurement_theta_min      2.59
_cell_volume                     2597.3(4)
_computing_cell_refinement       'SAINT (Bruker, 2004)'
_computing_data_collection       'SMART (Bruker, 2004)'
_computing_data_reduction        'SAINT (Bruker, 2004)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material
'SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      294(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker SMART APEX CCD area-detector'
_diffrn_measurement_method       'phi and omega 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  0.0274
_diffrn_reflns_av_sigmaI/netI    0.0167
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -25
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            17327
_diffrn_reflns_theta_full        25.50
_diffrn_reflns_theta_max         25.50
_diffrn_reflns_theta_min         2.59
_exptl_absorpt_coefficient_mu    0.125
_exptl_absorpt_correction_T_max  0.9494
_exptl_absorpt_correction_T_min  0.9459
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.142
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             968
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.43
_exptl_crystal_size_min          0.42
_refine_diff_density_max         0.378
_refine_diff_density_min         -0.303
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.026
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     161
_refine_ls_number_reflns         2485
_refine_ls_number_restraints     18
_refine_ls_restrained_S_all      1.072
_refine_ls_R_factor_all          0.0490
_refine_ls_R_factor_gt           0.0419
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0575P)^2^+1.3437P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1109
_refine_ls_wR_factor_ref         0.1170
_reflns_number_gt                2143
_reflns_number_total             2485
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            si2225.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_original_sg_symbol_H-M      Pnma
_cod_database_code               2224761
_cod_database_fobs_code          2224761