Probing the Mechanism of the PCl5-Initiated Living Cationic Polymerization of the Phosphoranimine Cl3P=NSiMe3 using Model Compound Chemistry
Vivienne Blackstone; Alan J. Lough; Martin Murray; Ian Manners; Journal of the American Chemical Society 131 (2009) 3658–3667; doi:10.1021/ja808517d

data_4104006
_publ_section_title
;
 Probing the Mechanism of the PCl5-Initiated Living Cationic
 Polymerization of the Phosphoranimine Cl3P=NSiMe3 using Model Compound
 Chemistry
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              3658
_journal_page_last               3667
_journal_paper_doi               10.1021/ja808517d
_journal_volume                  131
_journal_year                    2009
_chemical_formula_moiety         'C36 H30 Cl2 N2 P3, Cl6 P'
_chemical_formula_sum            'C36 H30 Cl8 N2 P4'
_chemical_formula_weight         898.10
_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                 103.2450(9)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   18.0588(3)
_cell_length_b                   7.74220(10)
_cell_length_c                   29.3146(4)
_cell_measurement_reflns_used    40827
_cell_measurement_temperature    150(1)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      2.7
_cell_volume                     3989.59(10)
_computing_cell_refinement       'Denzo-SMN (Otwinowski & Minor, 1997)'
_computing_data_collection       'Collect (Nonius B.V., 1997-2002)'
_computing_data_reduction        Denzo-SMN
_computing_molecular_graphics    'SHELXTL V6.1'
_computing_publication_material  'SHELXTL V6.1'
_computing_structure_refinement  'SHELXTL V6.1(Sheldrick, 2001)'
_computing_structure_solution    'SIR-92 (Altomare et al., 1994)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       '\f scans and \w scans with \k offsets'
_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  0.0533
_diffrn_reflns_av_sigmaI/netI    0.0584
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -23
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       37
_diffrn_reflns_limit_l_min       -38
_diffrn_reflns_number            40827
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         2.66
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.756
_exptl_absorpt_correction_T_max  0.985
_exptl_absorpt_correction_T_min  0.901
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
multi-scan from symmetry-related measurements 
 Sortav (Blessing 1995)
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.495
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1824
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.03
_refine_diff_density_max         0.422
_refine_diff_density_min         -0.460
_refine_diff_density_rms         0.075
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.027
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     451
_refine_ls_number_reflns         9056
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.027
_refine_ls_R_factor_all          0.0886
_refine_ls_R_factor_gt           0.0424
_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^)+(0.0596P)^2^+0.4482P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0990
_refine_ls_wR_factor_ref         0.1170
_reflns_number_gt                5834
_reflns_number_total             9056
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ja808517d_si_003.cif
_cod_data_source_block           k07295
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               4104006