Regulation of Axial Chirality through Dynamic Covalent Bond Constrained Biaryls.
Zheng, Hao; Ni, Cailing; Chen, Hang; Zha, Daijun; Hai, Yu; Ye, Hebo; You, Lei; ACS omega 4 (2019) 10273–10278; doi:10.1021/acsomega.9b01273

data_4515157
_publ_section_title
;
 Regulation of Axial Chirality through Dynamic Covalent Bond Constrained
 Biaryls.
;
_journal_issue                   6
_journal_name_full               'ACS omega'
_journal_page_first              10273
_journal_page_last               10278
_journal_paper_doi               10.1021/acsomega.9b01273
_journal_volume                  4
_journal_year                    2019
_chemical_formula_moiety         'C18 H19 N O2'
_chemical_formula_sum            'C18 H19 N O2'
_chemical_formula_weight         281.34
_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'
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_date             2019-05-23
_audit_creation_method
;
Olex2 1.2-beta
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
????
;
_cell_angle_alpha                90
_cell_angle_beta                 115.85(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   12.044(19)
_cell_length_b                   12.493(18)
_cell_length_c                   11.740(18)
_cell_measurement_reflns_used    3966
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.4276
_cell_measurement_theta_min      2.5253
_cell_volume                     1590(4)
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_diffrn_ambient_temperature      173.15
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0702
_diffrn_reflns_av_unetI/netI     0.0593
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.993
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            12052
_diffrn_reflns_point_group_measured_fraction_full 0.997
_diffrn_reflns_point_group_measured_fraction_max 0.993
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.328
_diffrn_reflns_theta_min         2.488
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.076
_exptl_absorpt_correction_type   none
_exptl_crystal_density_diffrn    1.176
_exptl_crystal_description       Prism
_exptl_crystal_F_000             600
_refine_diff_density_max         0.193
_refine_diff_density_min         -0.204
_refine_diff_density_rms         0.043
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.033
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     193
_refine_ls_number_reflns         3564
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.033
_refine_ls_R_factor_all          0.1091
_refine_ls_R_factor_gt           0.0703
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.1045P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1797
_refine_ls_wR_factor_ref         0.2080
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2204
_reflns_number_total             3564
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ao9b01273_si_002.cif
_cod_data_source_block           9a
_cod_database_code               4515157
_shelx_shelxl_version_number     2014/7
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Ternary CH refined with riding coordinates:
 C7(H7), C19(H19)
2.b Aromatic/amide H refined with riding coordinates:
 C9(H9), C10(H10), C12(H12), C13(H13), C14(H14), C15(H15), C16(H16), C18(H18)
2.c Idealised Me refined as rotating group:
 C17(H17A,H17B,H17C), C20(H20A,H20B,H20C), C21(H21A,H21B,H21C)
;
_shelx_res_checksum              13211
_shelx_hkl_checksum              67053
_olex2_submission_special_instructions 'No special instructions were received'