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_7108011
_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
'C112 H138 Si6 Sn4, 0.5(C6 H6), 3(C7 H8), 2(C2 H3 N)'
_chemical_formula_sum            'C140 H171 N2 Si6 Sn4'
_chemical_formula_weight         2525.09
_chemical_name_common
;
1,2-bis(2,2,4,4,5,5-hexakis(2,4,6-trimethylphenyl)-3-methyl-
2,4,5-trisila-1,3-distannabicylo(1.1.1)pentan)ethyne
;
_chemical_name_systematic
;
1,2-bis(2,2,4,4,5,5-hexakis(2,4,6-trimethylphenyl)-
3-methyl-2,4,5-trisila-1,3-
distannabicylo[1.1.1]pentan)ethyne
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                113.74(3)
_cell_angle_beta                 108.71(3)
_cell_angle_gamma                96.95(3)
_cell_formula_units_Z            1
_cell_length_a                   13.943(3)
_cell_length_b                   15.950(3)
_cell_length_c                   17.865(4)
_cell_measurement_reflns_used    22218
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      25.00
_cell_measurement_theta_min      3.65
_cell_volume                     3298.2(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 0.985
_diffrn_measured_fraction_theta_max 0.985
_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  0.0624
_diffrn_reflns_av_sigmaI/netI    0.0691
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            22218
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         3.65
_exptl_absorpt_coefficient_mu    0.851
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.271
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'irregular shaped crystal'
_exptl_crystal_F_000             1309
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.10
_refine_diff_density_max         1.942
_refine_diff_density_min         -1.175
_refine_diff_density_rms         0.131
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.053
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     755
_refine_ls_number_reflns         11460
_refine_ls_number_restraints     123
_refine_ls_restrained_S_all      1.050
_refine_ls_R_factor_all          0.0819
_refine_ls_R_factor_gt           0.0596
_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^)+(0.1121P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1559
_refine_ls_wR_factor_ref         0.1812
_reflns_number_gt                8153
_reflns_number_total             11460
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2cc33082b.txt
_cod_data_source_block           compound_5
_cod_original_cell_volume        3298.4(19)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7108011