P-P Menschutkin preparation of prototypical phosphinophosphonium salts
Saurabh S. Chitnis; Elizabeth MacDonald; Neil Burford; Ulrike Werner-Zwanziger; Robert McDonald; Chem.Commun. 48 (2012) 7359–; doi:10.1039/c2cc33082b

data_7108010
_publ_section_title
;
 P-P Menschutkin preparation of prototypical phosphinophosphonium salts
;
_journal_name_full               Chem.Commun.
_journal_page_first              7359
_journal_paper_doi               10.1039/c2cc33082b
_journal_volume                  48
_journal_year                    2012
_chemical_formula_moiety         'C58 H72 Si3 Sn2, C7 H8'
_chemical_formula_sum            'C65 H80 Si3 Sn2'
_chemical_formula_weight         1182.94
_chemical_name_common
;
1-(prop-1-yn)-2,2,4,4,5,5-hexakis(2,4,6-trimethylphenyl)-3-
methyl-2,4,5-trisila-1,3-distannabicyclo(1.1.1)pentane
;
_chemical_name_systematic
;
1-(prop-1-yn)-2,2,4,4,5,5-hexakis(2,4,6-trimethylphenyl)-
3-methyl-2,4,5-trisila-1,3-distannabicyclo[1.1.1]pentane
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 91.70(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.384(2)
_cell_length_b                   26.502(5)
_cell_length_c                   19.445(4)
_cell_measurement_reflns_used    40243
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      25.00
_cell_measurement_theta_min      3.24
_cell_volume                     5864.0(19)
_computing_cell_refinement       'CrysAlis Red'
_computing_data_collection       'CrysAlis CCD'
_computing_data_reduction        'CrysAlis Red'
_computing_molecular_graphics    'Ortep 32'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'Bruker SHELXTL'
_computing_structure_solution    'Bruker SHELXTL'
_diffrn_ambient_temperature      200(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Stoe Stadi with CCD'
_diffrn_measurement_method       '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  0.0872
_diffrn_reflns_av_sigmaI/netI    0.0594
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       31
_diffrn_reflns_limit_k_min       -31
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            40243
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         3.24
_exptl_absorpt_coefficient_mu    0.951
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.340
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'irregular shaped crystal'
_exptl_crystal_F_000             2448
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.875
_refine_diff_density_min         -0.834
_refine_diff_density_rms         0.093
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.058
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     653
_refine_ls_number_reflns         10267
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.058
_refine_ls_R_factor_all          0.0562
_refine_ls_R_factor_gt           0.0436
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0605P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1037
_refine_ls_wR_factor_ref         0.1114
_reflns_number_gt                8544
_reflns_number_total             10267
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2cc33082b.txt
_cod_data_source_block           compound_4
_cod_original_cell_volume        5864(2)
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               7108010