Phosphines Bearing Alkyne Substituents: Synthesis and Hydrophosphination Polymerization
Sharonna Greenberg; Douglas W. Stephan; Inorganic Chemistry 48 (2009) 8623–8631; doi:10.1021/ic9012284

data_4303114
_publ_section_title
;
Phosphines Bearing Alkyne Substituents: Synthesis and Hydrophosphination
Polymerization
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              8623
_journal_page_last               8631
_journal_paper_doi               10.1021/ic9012284
_journal_volume                  48
_journal_year                    2009
_chemical_formula_sum            'C20 H21 Br'
_chemical_formula_weight         341.28
_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                 104.12(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.984(3)
_cell_length_b                   10.408(2)
_cell_length_c                   13.080(3)
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      25.0
_cell_measurement_theta_min      2.0
_cell_volume                     1714.2(7)
_computing_cell_refinement       'Bruker XSCANS'
_computing_data_collection       'Bruker XSCANS'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_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  0.0770
_diffrn_reflns_av_sigmaI/netI    0.0649
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            12780
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.79
_exptl_absorpt_coefficient_mu    2.390
_exptl_absorpt_correction_T_max  0.871
_exptl_absorpt_correction_T_min  0.657
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.322
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needles
_exptl_crystal_F_000             704
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.13
_refine_diff_density_max         0.466
_refine_diff_density_min         -0.462
_refine_diff_density_rms         0.073
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.018
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     190
_refine_ls_number_reflns         3009
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.018
_refine_ls_R_factor_all          0.0689
_refine_ls_R_factor_gt           0.0401
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0426P)^2^+0.3267P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0828
_refine_ls_wR_factor_ref         0.0939
_reflns_number_gt                2200
_reflns_number_total             3009
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic9012284_si_002_1.cif
_cod_data_source_block           BrC6H2(iPr)R2C=CPh
_cod_original_cell_volume        1714.2(6)
_cod_database_code               4303114