12α-Hydroxy-3,27-dioxooleanano-28,13-lactone
Hu, Jun-yi; Wu, Gang-gang; Xu, Ying-qian; Xiao, Guo-yong; Lei, Peng; Acta Crystallographica Section E 68 (2012) o1586–; doi:10.1107/S1600536812017783

data_2235120
_publ_section_title
;
 12\a-Hydroxy-3,27-dioxooleanano-28,13-lactone
;
_journal_coeditor_code           KP2404
_journal_issue                   6
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1586
_journal_paper_doi               10.1107/S1600536812017783
_journal_volume                  68
_journal_year                    2012
_chemical_formula_iupac          'C30 H44 O5'
_chemical_formula_moiety         'C30 H44 O5'
_chemical_formula_sum            'C30 H44 O5'
_chemical_formula_weight         484.65
_chemical_name_systematic
;
12\a-Hydroxy-3,27-dioxooleanano-28,13-lactone
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   12.4457(3)
_cell_length_b                   15.5804(4)
_cell_length_c                   27.1710(8)
_cell_measurement_reflns_used    11606
_cell_measurement_temperature    113(2)
_cell_measurement_theta_max      27.1
_cell_measurement_theta_min      1.5
_cell_volume                     5268.7(2)
_computing_cell_refinement       'CrystalClear (Rigaku, 2007)'
_computing_data_collection       'CrystalClear (Rigaku, 2007)'
_computing_data_reduction        'CrystalClear (Rigaku, 2007)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'CrystalStructure (Rigaku, 2007)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      113(2)
_diffrn_detector_area_resol_mean 7.31
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Rigaku Saturn CCD area-detector'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  multilayer
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0542
_diffrn_reflns_av_sigmaI/netI    0.0320
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       32
_diffrn_reflns_limit_l_min       -34
_diffrn_reflns_number            46805
_diffrn_reflns_theta_full        27.09
_diffrn_reflns_theta_max         27.09
_diffrn_reflns_theta_min         1.50
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.081
_exptl_absorpt_correction_T_max  0.9792
_exptl_absorpt_correction_T_min  0.9745
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(CrystalClear; Rigaku, 2007)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.222
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2112
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.26
_refine_diff_density_max         0.184
_refine_diff_density_min         -0.226
_refine_ls_abs_structure_details 'None, Friedel Pairs merged'
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.098
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     649
_refine_ls_number_reflns         6391
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.098
_refine_ls_R_factor_all          0.0444
_refine_ls_R_factor_gt           0.0413
_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^)+(0.0492P)^2^+0.7562P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0937
_refine_ls_wR_factor_ref         0.0952
_reflns_number_gt                6106
_reflns_number_total             6391
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            kp2404.cif
_cod_data_source_block           I
_cod_database_code               2235120
_cod_database_fobs_code          2235120