Introducing an orthogonally polarized electron-rich alkene: synthesis of a zwitterionic boron-containing π-conjugated system
Chrysochos, Nicolas; Pätsch, Sebastian; Elvers, Benedict Josua; Krummenacher, Ivo; Muneshwar , Nandeshwar; Ganesan, Prabusankar; Braunschweig, Holger; Schulzke, Carola; Ravat, Prince; Jana, Anukul; Chemical Communications  (2023) –; doi:10.1039/D3CC03975G

data_7132091
_publ_section_title
;
 Introducing an orthogonally polarized electron-rich alkene: synthesis of
 a zwitterionic boron-containing \p-conjugated system
;
_journal_name_full               'Chemical Communications'
_journal_paper_doi               10.1039/D3CC03975G
_journal_year                    2023
_chemical_formula_moiety         'C40 H50 N2'
_chemical_formula_sum            'C40 H50 N2'
_chemical_formula_weight         558.82
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2019/3
_audit_update_record
;
2023-08-09 deposited with the CCDC.	2023-08-30 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 105.78(3)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   10.314(2)
_cell_length_b                   13.131(3)
_cell_length_c                   13.121(3)
_cell_measurement_reflns_used    811
_cell_measurement_temperature    273(2)
_cell_measurement_theta_max      20.13
_cell_measurement_theta_min      2.24
_cell_volume                     1710.0(7)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2019/2 (Sheldrick, 2019)'
_computing_structure_solution    'SHELXL-2018/3 (Sheldrick, 2018)'
_diffrn_ambient_temperature      273(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0535
_diffrn_reflns_av_unetI/netI     0.0319
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            27593
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.126
_diffrn_reflns_theta_min         2.238
_diffrn_source                   'sealed tube'
_exptl_absorpt_coefficient_mu    0.062
_exptl_absorpt_correction_T_max  0.8619
_exptl_absorpt_correction_T_min  0.8614
_exptl_absorpt_correction_type   sphere
_exptl_absorpt_process_details
;
Interpolation using  Int.Tab. Vol. C (1992) p. 523,Tab. 6.3.3.3
for values of muR in the range 0-2.5, and Int.Tab. Vol.II (1959)
p.302; Table 5.3.6 B for muR in the range 2.6-10.0.
The interpolation procedure of C.W.Dwiggins Jr (Acta Cryst.(1975)
A31,146-148) is used with some modification.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.085
_exptl_crystal_description       block
_exptl_crystal_F_000             608
_exptl_crystal_size_max          0.215
_exptl_crystal_size_mid          0.134
_exptl_crystal_size_min          0.095
_exptl_crystal_size_rad          0.1500
_refine_diff_density_max         0.185
_refine_diff_density_min         -0.149
_refine_diff_density_rms         0.028
_refine_ls_extinction_coef       0.021(3)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2019/2 (Sheldrick 2019)'
_refine_ls_goodness_of_fit_ref   1.027
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     309
_refine_ls_number_reflns         3773
_refine_ls_number_restraints     828
_refine_ls_restrained_S_all      0.980
_refine_ls_R_factor_all          0.0747
_refine_ls_R_factor_gt           0.0448
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0528P)^2^+0.2736P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1075
_refine_ls_wR_factor_ref         0.1242
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2572
_reflns_number_total             3773
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d3cc03975g2.cif
_cod_data_source_block           NC49carb
_cod_original_cell_volume        1709.9(6)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7132091
_shelx_shelxl_version_number     2019/3
_shelx_estimated_absorpt_t_min   0.987
_shelx_estimated_absorpt_t_max   0.994
_shelx_res_checksum              93557
_shelx_hkl_checksum              46489