A Stable Dialkylphosphinyl Radical
Shintaro Ishida; Fumiya Hirakawa; Takeaki Iwamoto; Journal of the American Chemical Society 133 (2011) 12968–12971; doi:10.1021/ja205001m

data_4106624
_publ_section_title
;
 A Stable Dialkylphosphinyl Radical
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              12968
_journal_page_last               12971
_journal_paper_doi               10.1021/ja205001m
_journal_volume                  133
_journal_year                    2011
_chemical_formula_sum            'C16 H40 P Si4'
_chemical_formula_weight         375.81
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_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                 100.4400(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.4386(7)
_cell_length_b                   12.7615(8)
_cell_length_c                   16.3146(10)
_cell_measurement_reflns_used    8736
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.74
_cell_measurement_theta_min      2.41
_cell_volume                     2342.1(3)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'Bruker SHELXTL'
_computing_structure_solution    'Bruker SHELXTL'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  '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  0.0135
_diffrn_reflns_av_sigmaI/netI    0.0151
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            11239
_diffrn_reflns_theta_full        25.50
_diffrn_reflns_theta_max         25.50
_diffrn_reflns_theta_min         2.04
_exptl_absorpt_coefficient_mu    0.317
_exptl_absorpt_correction_T_max  0.9750
_exptl_absorpt_correction_T_min  0.9392
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.066
_exptl_crystal_description       platelet
_exptl_crystal_F_000             828
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.408
_refine_diff_density_min         -0.197
_refine_diff_density_rms         0.041
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.020
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     202
_refine_ls_number_reflns         4332
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.020
_refine_ls_R_factor_all          0.0271
_refine_ls_R_factor_gt           0.0246
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0346P)^2^+1.0912P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0657
_refine_ls_wR_factor_ref         0.0684
_reflns_number_gt                3979
_reflns_number_total             4332
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja205001m_si_002_1.cif
_cod_data_source_block           compound_1_dialkylphosphinyl
_cod_database_code               4106624