16β-Bromo-17α-hydroxypregn-4-ene-3,20-dione
Shi Wang; Yongli Wang; Qiang Nie; Aishuang Xiang; Lina Zhou; Acta Crystallographica Section E 61 (2005) o1–o2; doi:10.1107/S1600536804031083

data_2204901
_publ_section_title
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 16\b-Bromo-17\a-hydroxypregn-4-ene-3,20-dione
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_journal_issue                   1
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1
_journal_page_last               o2
_journal_paper_doi               10.1107/S1600536804031083
_journal_volume                  61
_journal_year                    2005
_chemical_formula_iupac          'C21 H29 Br O3'
_chemical_formula_moiety         'C21 H29 Br O3'
_chemical_formula_sum            'C21 H29 Br O3'
_chemical_formula_weight         409.35
_chemical_name_systematic
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16\b-Bromo-17\a-hydroxypregn-4-ene-3,20-dione
;
_space_group_IT_number           5
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'C 2y'
_symmetry_space_group_name_H-M   'C 1 2 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 115.682(8)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   22.565(7)
_cell_length_b                   9.393(3)
_cell_length_c                   21.052(7)
_cell_measurement_reflns_used    2865
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      21.58
_cell_measurement_theta_min      2.39
_cell_volume                     4021(2)
_computing_cell_refinement       SMART
_computing_data_collection       'SMART (Bruker, 1998)'
_computing_data_reduction        'SAINT (Bruker, 1998)'
_computing_molecular_graphics    'SHELXTL (Bruker, 1998)'
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker SMART 1000 CCD area-detector'
_diffrn_measurement_method       '\f and \w'
_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  0.0351
_diffrn_reflns_av_sigmaI/netI    0.1002
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       -23
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            10528
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.82
_exptl_absorpt_coefficient_mu    2.061
_exptl_absorpt_correction_T_max  0.749
_exptl_absorpt_correction_T_min  0.605
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 1998)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.352
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1712
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.14
_refine_diff_density_max         0.567
_refine_diff_density_min         -0.503
_refine_ls_abs_structure_details 'Flack (1983), 2214 Friedel pairs'
_refine_ls_abs_structure_Flack   0.012(9)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.000
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     459
_refine_ls_number_reflns         6647
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.000
_refine_ls_R_factor_all          0.0954
_refine_ls_R_factor_gt           0.0426
_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^)] where P = (Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0778
_refine_ls_wR_factor_ref         0.0933
_reflns_number_gt                4103
_reflns_number_total             6647
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            is6018.cif
_cod_data_source_block           I
_cod_depositor_comments
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The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      'C 2'
_cod_database_code               2204901
_cod_database_fobs_code          2204901