Atropisomer-based Construction of Macrocyclic Hosts that Selectively Recognize Tryptophan from Standard Amino Acids
Yang, Fei; Liu, Caiping; Yin, Di; Xu, Yanqing; Wu, Mingyan; Wei, Wei; Chemical Communications  (2019) –; doi:10.1039/C9CC07646H

data_7124430
_publ_section_title
;
 Atropisomer-based Construction of Macrocyclic Hosts that Selectively
 Recognize Tryptophan from Standard Amino Acids
;
_journal_name_full               'Chemical Communications'
_journal_paper_doi               10.1039/C9CC07646H
_journal_year                    2019
_chemical_formula_sum            'C24 H20 Br N O3'
_chemical_formula_weight         450.32
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2019-10-29 deposited with the CCDC.	2019-11-04 downloaded from the CCDC.
;
_cell_angle_alpha                87.686(4)
_cell_angle_beta                 83.388(4)
_cell_angle_gamma                74.340(4)
_cell_formula_units_Z            2
_cell_length_a                   6.1986(3)
_cell_length_b                   9.7279(4)
_cell_length_c                   17.3084(9)
_cell_measurement_reflns_used    9994
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      24.71
_cell_measurement_theta_min      2.36
_cell_volume                     998.21(8)
_computing_cell_refinement       'CrystalClear (Rigaku Corp., 2000)'
_computing_data_collection       'CrystalClear (Rigaku Corp., 2000)'
_computing_data_reduction        'CrystalClear (Rigaku Corp., 2000)'
_computing_molecular_graphics    ORTEP-3
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXL-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.971
_diffrn_measurement_device_type  'hybrid pixel array detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0539
_diffrn_reflns_av_unetI/netI     0.0460
_diffrn_reflns_Laue_measured_fraction_full 0.996
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_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            11416
_diffrn_reflns_point_group_measured_fraction_full 0.996
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_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         73.747
_diffrn_reflns_theta_min         4.721
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    3.017
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_exptl_absorpt_correction_T_min  0.889
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(<i>SADABS</i>; Bruker, 2007)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.498
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             460
_exptl_crystal_size_max          0.41
_exptl_crystal_size_mid          0.32
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_refine_diff_density_max         0.483
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_refine_diff_density_rms         0.081
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.080
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     265
_refine_ls_number_reflns         3917
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.080
_refine_ls_R_factor_all          0.0462
_refine_ls_R_factor_gt           0.0423
_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^)+(0.0631P)^2^+0.7047P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1167
_refine_ls_wR_factor_ref         0.1193
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3521
_reflns_number_total             3917
_reflns_threshold_expression     'I > 2\s(I)'
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_cod_data_source_block           anti-A
_cod_database_code               7124430
_shelx_shelxl_version_number     2014/7
_shelx_res_checksum              11984