Selective formation of heterocyclic trans-cycloalkenes by alkyne addition to a biphenylene-based phosphane/borane frustrated Lewis pair.
Li, Jun; Daniliuc, Constantin G.; Kehr, Gerald; Erker, Gerhard; Chemical communications (Cambridge, England) 54 (2018) 6344–6347; doi:10.1039/c8cc03369b

data_7121682
_publ_section_title
;
 Selective formation of heterocyclic trans-cycloalkenes by alkyne addition
 to a biphenylene-based phosphane/borane frustrated Lewis pair.
;
_journal_issue                   49
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              6344
_journal_page_last               6347
_journal_paper_doi               10.1039/c8cc03369b
_journal_volume                  54
_journal_year                    2018
_chemical_formula_sum            'C52 H38 B F10 P'
_chemical_formula_weight         894.60
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2017-11-28 deposited with the CCDC.
2018-05-14 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 104.493(1)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.5964(3)
_cell_length_b                   18.8664(3)
_cell_length_c                   15.7176(4)
_cell_measurement_reflns_used    4.08
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      8158
_cell_measurement_theta_min      26.37
_cell_volume                     4190.60(15)
_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      173(2)
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.989
_diffrn_measurement_device_type  'Nonius KappaCCD APEXII'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  'Montel mirror'
_diffrn_radiation_source         'rotating anode Nonius FR591'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.061
_diffrn_reflns_av_sigmaI/netI    0.0447
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            34103
_diffrn_reflns_theta_full        26.38
_diffrn_reflns_theta_max         26.38
_diffrn_reflns_theta_min         4.09
_exptl_absorpt_coefficient_mu    0.148
_exptl_absorpt_correction_T_max  0.9897
_exptl_absorpt_correction_T_min  0.9781
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'Denzo (Otwinowski, Borek, Majewski & Minor, 2003)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.418
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1840
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.07
_refine_diff_density_max         0.377
_refine_diff_density_min         -0.332
_refine_diff_density_rms         0.046
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.025
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     583
_refine_ls_number_reflns         8490
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.025
_refine_ls_R_factor_all          0.0651
_refine_ls_R_factor_gt           0.0504
_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^)+(0.0486P)^2^+2.8570P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1186
_refine_ls_wR_factor_ref         0.1288
_reflns_number_gt                6848
_reflns_number_total             8490
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c8cc03369b2.cif
_cod_data_source_block           erk8588
_cod_depositor_comments
'Adding full bibliography for 7121673--7121682.cif.'
_cod_original_sg_symbol_H-M      P21/n
_cod_database_code               7121682