Handedness Determination of 21Helical Motifs and Hierarchical Analysis of Crystal Structures Based on the Motifs: The Case of Cinchona Alkaloid Derivatives
Hisaki, Ichiro; Shizuki, Norie; Sasaki, Toshiyuki; Ito, Yuka; Tohnai, Norimitsu; Miyata, Mikiji; Crystal Growth & Design 10 (2010) 5262–; doi:10.1021/cg101111f

data_4502141
_publ_section_title
;
 Handedness Determination of 21Helical Motifs and Hierarchical Analysis of
 Crystal Structures Based on the Motifs: The Case of Cinchona Alkaloid
 Derivatives
;
_journal_issue                   12
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              5262
_journal_paper_doi               10.1021/cg101111f
_journal_volume                  10
_journal_year                    2010
_chemical_absolute_configuration rm
_chemical_formula_moiety         'C20 H27 B N2 O2 '
_chemical_formula_sum            'C20 H27 B N2 O2'
_chemical_formula_weight         338.26
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      4
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_cell_angle_alpha                90.0000
_cell_angle_beta                 91.8651(15)
_cell_angle_gamma                90.0000
_cell_formula_units_Z            4
_cell_length_a                   9.6059(2)
_cell_length_b                   11.0417(3)
_cell_length_c                   18.1746(4)
_cell_measurement_reflns_used    12196
_cell_measurement_temperature    153.1
_cell_measurement_theta_max      68.2
_cell_measurement_theta_min      4.0
_cell_volume                     1926.68(8)
_computing_cell_refinement       PROCESS-AUTO
_computing_data_collection       PROCESS-AUTO
_computing_data_reduction        CrystalStructure
_computing_publication_material  'CrystalStructure 3.8'
_computing_structure_refinement  SHELXL
_computing_structure_solution    SIR2004
_diffrn_ambient_temperature      153
_diffrn_detector_area_resol_mean 10.00
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Rigaku RAXIS-RAPID'
_diffrn_measurement_method       \w
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.54187
_diffrn_reflns_av_R_equivalents  0.044
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            20029
_diffrn_reflns_theta_full        68.25
_diffrn_reflns_theta_max         68.25
_exptl_absorpt_coefficient_mu    0.584
_exptl_absorpt_correction_T_max  0.839
_exptl_absorpt_correction_T_min  0.694
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details
;
    Higashi, T. (1999). Program for Absorption Correction.
    Rigaku Corporation, Tokyo, Japan.
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.166
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             728.00
_exptl_crystal_size_max          0.60
_exptl_crystal_size_mid          0.60
_exptl_crystal_size_min          0.30
_refine_diff_density_max         0.42
_refine_diff_density_min         -0.41
_refine_ls_abs_structure_details
'Flack, H. D. (1983), Acta Cryst. A39, 876-881.  3150 Friedel Pairs'
_refine_ls_abs_structure_Flack   -0.1(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.110
_refine_ls_hydrogen_treatment    refall
_refine_ls_number_parameters     452
_refine_ls_number_reflns         6872
_refine_ls_R_factor_gt           0.0489
_refine_ls_shift/su_max          0.0030
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.0804P)^2^+0.1585P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.1467
_reflns_number_gt                5668
_reflns_number_total             6872
_reflns_threshold_expression     F^2^>2.0\s(F^2^)
_cod_data_source_file            cg101111f_si_005.cif
_cod_data_source_block           Qd_BH3
_cod_original_cell_volume        1926.66(8)
_cod_original_formula_sum        'C20 H27 B N2 O2 '
_cod_database_code               4502141