Self-assembly modes of glycyrrhetinic acid esters in view of the crystal packing of related triterpene molecules
Langer, Dominik; Wicher, Barbara; Szczołko, Wojciech; Gdaniec, Maria; Tykarska, Ewa; Acta Crystallographica Section B 72 (2016) 584–592; doi:10.1107/S2052520616008180

data_2107638
_publ_section_title
;
 Self-assembly modes of glycyrrhetinic acid esters in view of the crystal
 packing of related triterpene molecules
;
_journal_issue                   4
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              584
_journal_page_last               592
_journal_paper_doi               10.1107/S2052520616008180
_journal_volume                  72
_journal_year                    2016
_chemical_formula_moiety         'C32 H50 O4'
_chemical_formula_sum            'C32 H50 O4'
_chemical_formula_weight         498.72
_chemical_name_common
;
ethyl ester of glycyrrhetinic acid
;
_chemical_name_systematic
;
ethyl-3/b-hydroxy-11-oxoolean-12-en-30-oate
;
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   12.9577(5)
_cell_length_b                   13.0369(4)
_cell_length_c                   16.3908(5)
_cell_measurement_reflns_used    3007
_cell_measurement_temperature    130(2)
_cell_measurement_theta_max      28.71
_cell_measurement_theta_min      3.51
_cell_volume                     2768.87(16)
_computing_cell_refinement       'CrysAlis Pro (Agilent Technologies, 2014)'
_computing_data_collection       'CrysAlis Pro (Agilent Technologies, 2014)'
_computing_data_reduction        'CrysAlis Pro (Agilent Technologies, 2014)'
_computing_molecular_graphics
;
Mercury (Macrae et al., 2008)
;
_computing_publication_material  'SHELXL-2014 (Sheldrick, 2014)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SIR2004 (Burla et al., 2005)'
_diffrn_ambient_temperature      130(2)
_diffrn_detector_area_resol_mean 16.1544
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Xcalibur, Eos'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0384
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            9373
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.342
_diffrn_reflns_theta_min         2.941
_exptl_absorpt_coefficient_mu    0.076
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.885
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Agilent Technologies, 2014
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.196
_exptl_crystal_description       plate
_exptl_crystal_F_000             1096
_exptl_crystal_size_max          0.600
_exptl_crystal_size_mid          0.200
_exptl_crystal_size_min          0.150
_refine_diff_density_max         0.169
_refine_diff_density_min         -0.196
_refine_ls_abs_structure_details
;
 Flack x determined using 1021 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.8(9)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.923
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     334
_refine_ls_number_reflns         4597
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.923
_refine_ls_R_factor_all          0.0631
_refine_ls_R_factor_gt           0.0427
_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^)+(0.0213P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0697
_refine_ls_wR_factor_ref         0.0749
_reflns_number_gt                3513
_reflns_number_total             4597
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            fx5001sup1.cif
_cod_data_source_block           4
_cod_database_code               2107638
_cod_database_fobs_code          2107638
_shelx_estimated_absorpt_t_min   0.956
_shelx_estimated_absorpt_t_max   0.989
_shelx_hkl_checksum              57524
_shelx_res_checksum              21663