Crystal constructure of 16(S)-methyl-6α-carboxy-1, 15-dioxo-6, 7-seco-ent-kaur-2-en-7, 20-olide, C20H24O6
Zhao, Neng-Wu; Ye, Jiang-Hai; Zhao, Chen-Liang; Zhang, Jing-Jie; Pan, Lu-Tai; Zeitschrift für Kristallographie - New Crystal Structures 232 (2017) 27–28; doi:10.1515/ncrs-2016-0112

data_8106420
_publ_section_title
;
 Crystal constructure of 16(S)-methyl-6\a-carboxy-1, 15-dioxo-6,
 7-seco-ent-kaur-2-en-7, 20-olide, C20H24O6
;
_journal_issue                   1
_journal_name_full
'Zeitschrift f\"ur Kristallographie - New Crystal Structures'
_journal_page_first              27
_journal_page_last               28
_journal_paper_doi               10.1515/ncrs-2016-0112
_journal_volume                  232
_journal_year                    2017
_chemical_absolute_configuration unk
_chemical_formula_sum            'C20 H24 O6'
_chemical_formula_weight         360.39
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_symmetry_cell_setting           orthorhombic
_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            4
_cell_length_a                   7.697(14)
_cell_length_b                   13.91(2)
_cell_length_c                   16.75(3)
_cell_measurement_temperature    293(2)
_cell_volume                     1793(5)
_computing_cell_refinement       'APEX2 (Bruker, 2003)'
_computing_data_collection       'APEX2 (Bruker, 2003)'
_computing_data_reduction        'SAINT (Bruker, 2003)'
_computing_molecular_graphics    'SHELXL-97 (Sheldrick, 2008)'
_computing_publication_material  'WinGX (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.965
_diffrn_measured_fraction_theta_max 0.965
_diffrn_measurement_device_type  'Bruker APEX II CCD Area Detector'
_diffrn_measurement_method       '\f and \w scan'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0556
_diffrn_reflns_av_sigmaI/netI    0.0492
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            12305
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         1.90
_exptl_absorpt_coefficient_mu    0.098
_exptl_absorpt_correction_T_max  0.9797
_exptl_absorpt_correction_T_min  0.9768
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick,2008)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.334
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             768
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.21
_refine_diff_density_max         0.156
_refine_diff_density_min         -0.145
_refine_diff_density_rms         0.040
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.1(12)
_refine_ls_extinction_coef       0.016(2)
_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   1.028
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     236
_refine_ls_number_reflns         3327
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.028
_refine_ls_R_factor_all          0.0638
_refine_ls_R_factor_gt           0.0430
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0541P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0958
_refine_ls_wR_factor_ref         0.1087
_reflns_number_gt                2512
_reflns_number_total             3327
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            suppl_ncrs-2016-0112_suppl.cif
_cod_data_source_block           o
_cod_original_cell_volume        1794(6)
_cod_original_sg_symbol_H-M      P212121
_cod_database_code               8106420
_publcif_info_exptl_table_max_cols 4
_publcif_info_exptl_table_use_headnotes n