Remarkably variable reaction modes of frustrated Lewis pairs with non-conjugated terminal diacetylenes.
Chen, Chao; Fröhlich, Roland; Kehr, Gerald; Erker, Gerhard; Chemical communications (Cambridge, England) 46 (2010) 3580–3582; doi:10.1039/b926830h

data_7105565
_publ_section_title
;
 Remarkably variable reaction modes of frustrated Lewis pairs with
 non-conjugated terminal diacetylenes.
;
_journal_issue                   20
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              3580
_journal_page_last               3582
_journal_paper_doi               10.1039/b926830h
_journal_volume                  46
_journal_year                    2010
_chemical_formula_sum            'C46 H23 B F21 P'
_chemical_formula_weight         1016.42
_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                80.920(2)
_cell_angle_beta                 75.060(2)
_cell_angle_gamma                75.741(2)
_cell_formula_units_Z            2
_cell_length_a                   10.9971(5)
_cell_length_b                   11.1320(5)
_cell_length_c                   18.0736(7)
_cell_measurement_reflns_used    6706
_cell_measurement_temperature    223(2)
_cell_measurement_theta_max      68.25
_cell_measurement_theta_min      0.88
_cell_volume                     2061.38(16)
_computing_cell_refinement       'Collect (Nonius B.V., 1998)'
_computing_data_collection       'Collect (Nonius B.V., 1998)'
_computing_data_reduction        'Denzo-SMN (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'XP (BrukerAXS, 2000)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      223(2)
_diffrn_measured_fraction_theta_full 0.967
_diffrn_measured_fraction_theta_max 0.967
_diffrn_measurement_device_type  'Nonius KappaCCD APEXII'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.054
_diffrn_reflns_av_sigmaI/netI    0.0286
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            29925
_diffrn_reflns_theta_full        67.62
_diffrn_reflns_theta_max         67.62
_diffrn_reflns_theta_min         4.26
_exptl_absorpt_coefficient_mu    1.798
_exptl_absorpt_correction_T_max  0.9155
_exptl_absorpt_correction_T_min  0.6621
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'Denzo (Otwinowski, Borek, Majewski & Minor, 2003)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.638
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1016
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.05
_refine_diff_density_max         1.075
_refine_diff_density_min         -0.895
_refine_diff_density_rms         0.060
_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     642
_refine_ls_number_reflns         7197
_refine_ls_number_restraints     150
_refine_ls_restrained_S_all      1.136
_refine_ls_R_factor_all          0.0643
_refine_ls_R_factor_gt           0.0572
_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^)+(0.0665P)^2^+2.7735P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1433
_refine_ls_wR_factor_ref         0.1499
_reflns_number_gt                6259
_reflns_number_total             7197
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b926830h.txt
_cod_data_source_block           erk5258
_cod_original_cell_volume        2061.38(15)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7105565