Controlled Self-Assembly of Multiple Diastereomeric Macrocyclic Boronic Esters Composed of Two Chiral Units
Suguru Ito; Kosuke Ono; Nobuharu Iwasawa; Journal of the American Chemical Society 134 (2012) 13962–13965; doi:10.1021/ja306249f

data_4118557
_publ_contact_author             'Nobuharu Iwasawa'
_publ_contact_author_email       niwasawa@chem.titech.ac.jp
_publ_section_title
;
 Controlled Self-Assembly of Multiple Diastereomeric Macrocyclic Boronic
 Esters Composed of Two Chiral Units
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              13962
_journal_page_last               13965
_journal_paper_doi               10.1021/ja306249f
_journal_volume                  134
_journal_year                    2012
_chemical_absolute_configuration rmad
_chemical_formula_moiety         'C78 H72 B4 O12, 2(C6 H14)'
_chemical_formula_sum            'C90 H100 B4 O12'
_chemical_formula_weight         1416.94
_space_group_IT_number           92
_symmetry_cell_setting           tetragonal
_symmetry_Int_Tables_number      92
_symmetry_space_group_name_Hall  'P 4abw 2nw'
_symmetry_space_group_name_H-M   'P 41 21 2'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.9058(6)
_cell_length_b                   13.9058(6)
_cell_length_c                   41.035(2)
_cell_measurement_reflns_used    89912
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      68.25
_cell_measurement_theta_min      3.36
_cell_volume                     7935.0(6)
_computing_cell_refinement       'PROCESS-AUTO (Rigaku, 1998) '
_computing_data_collection       'PROCESS-AUTO (Rigaku, 1998)'
_computing_data_reduction        'PROCESS-AUTO (Rigaku, 1998) '
_computing_molecular_graphics    'ORTEP-3 for Windows (Farrugia, 1998)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS (Sheldrick, 1997)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Rigaku RAXIS-RAPID IP area detector system'
_diffrn_measurement_method       '\w scan'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54186
_diffrn_reflns_av_R_equivalents  0.0928
_diffrn_reflns_av_sigmaI/netI    0.0344
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       49
_diffrn_reflns_limit_l_min       -49
_diffrn_reflns_number            89912
_diffrn_reflns_theta_full        68.25
_diffrn_reflns_theta_max         68.25
_diffrn_reflns_theta_min         3.36
_diffrn_source                   'rotating anode x-ray tube'
_exptl_absorpt_coefficient_mu    0.603
_exptl_absorpt_correction_T_max  0.8888
_exptl_absorpt_correction_T_min  0.7943
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'absorption was corrected by ABSCOR'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.186
_exptl_crystal_description       prism
_exptl_crystal_F_000             3024
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.776
_refine_diff_density_min         -0.334
_refine_diff_density_rms         0.074
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.0(3)
_refine_ls_extinction_coef       0.00082(16)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.038
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     451
_refine_ls_number_reflns         7273
_refine_ls_number_restraints     9
_refine_ls_restrained_S_all      1.049
_refine_ls_R_factor_all          0.0696
_refine_ls_R_factor_gt           0.0661
_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^)+(0.1480P)^2^+1.7089P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1949
_refine_ls_wR_factor_ref         0.2009
_reflns_number_gt                6750
_reflns_number_total             7273
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja306249f_5a.cif
_cod_data_source_block           5a
_cod_database_code               4118557