Probing site cooperativity of frustrated phosphine/borane lewis pairs by a polymerization study.
Xu, Tieqi; Chen, Eugene Y.-X.; Journal of the American Chemical Society 136 (2014) 1774–1777; doi:10.1021/ja412445n

data_4120592
_publ_section_title
;
 Probing site cooperativity of frustrated phosphine/borane lewis pairs by
 a polymerization study.
;
_journal_issue                   5
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              1774
_journal_page_last               1777
_journal_paper_doi               10.1021/ja412445n
_journal_volume                  136
_journal_year                    2014
_chemical_formula_sum            'C63 H35 B2 F30 O2 P'
_chemical_formula_weight         1446.50
_chemical_name_systematic
; 
 ? 
;
_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                 95.954(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.4874(6)
_cell_length_b                   14.5090(7)
_cell_length_c                   32.8803(15)
_cell_measurement_temperature    100(2)
_cell_volume                     5925.1(5)
_computing_cell_refinement       'Bruker APEX2 (Bruker, 2009)'
_computing_data_collection       'Bruker APEX2 (Bruker, 2009)'
_computing_data_reduction        'Bruker APEX2 (Bruker, 2009)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'SHELXTL (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w 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  0.0580
_diffrn_reflns_av_sigmaI/netI    0.0370
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       39
_diffrn_reflns_limit_l_min       -38
_diffrn_reflns_number            80024
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.95
_exptl_absorpt_coefficient_mu    0.188
_exptl_absorpt_correction_T_max  0.9807
_exptl_absorpt_correction_T_min  0.9595
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SCALE (Bruker, 2009)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.622
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2896
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.17
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.727
_refine_diff_density_min         -0.470
_refine_diff_density_rms         0.067
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.155
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     910
_refine_ls_number_reflns         10439
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.155
_refine_ls_R_factor_all          0.0796
_refine_ls_R_factor_gt           0.0613
_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^)+(0.0334P)^2^+15.0925P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1302
_refine_ls_wR_factor_ref         0.1380
_reflns_number_gt                8387
_reflns_number_total             10439
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja412445n_si_002.cif
_cod_data_source_block           ec82_0m
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/automatic-downloads/current/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               4120592