13-Methyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1<i>H</i>-cyclopenta[<i>a</i>]phenanthren-17-yl 4-nitrobenzoate
Yu-Yuan Ye; Acta Crystallographica Section E 63 (2007) o3022–o3022; doi:10.1107/S1600536807025020

data_2213957
_publ_section_title
;13-Methyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1<i>H</i>-cyclopenta[<i>a</i>]phenanthren-17-yl
 4-nitrobenzoate
;
_journal_coeditor_code           SG2168
_journal_issue                   6
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o3022
_journal_page_last               o3022
_journal_paper_doi               10.1107/S1600536807025020
_journal_volume                  63
_journal_year                    2007
_chemical_formula_iupac          'C25 H29 N O5'
_chemical_formula_moiety         'C25 H29 N O5'
_chemical_formula_sum            'C25 H29 N O5'
_chemical_formula_weight         423.49
_chemical_name_systematic
;
13-Methyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-
1<i>H</i>-cyclopenta[<i>a</i>]phenanthren-17-yl 4-nitrobenzoate
;
_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
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.8866(6)
_cell_length_b                   11.5321(6)
_cell_length_c                   17.6671(9)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      14.83
_cell_measurement_theta_min      9.98
_cell_volume                     2218.0(2)
_computing_cell_refinement       'CAD-4 EXPRESS'
_computing_data_collection       'CAD-4 EXPRESS (Enraf--Nonius, 1994)'
_computing_data_reduction        'XCAD4 (Harms & Wocadlo, 1995)'
_computing_molecular_graphics
'ORTEP-3 for Windows (Version 1.05; Farrugia, 1997)'
_computing_publication_material  'WinGX (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Enraf-Nonius CAD-4'
_diffrn_measurement_method       'omega/2-theta scans'
_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  0.0422
_diffrn_reflns_av_sigmaI/netI    0.0169
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            25354
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.11
_diffrn_standards_decay_%        0.3
_diffrn_standards_interval_time  60
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.088
_exptl_absorpt_correction_T_max  0.9895
_exptl_absorpt_correction_T_min  0.9644
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(ABSCOR; Higashi, 1995)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.268
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             904
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.21
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.207
_refine_diff_density_min         -0.134
_refine_ls_abs_structure_details 'Flack (1983)'
_refine_ls_extinction_coef       0.0045(9)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL97
_refine_ls_goodness_of_fit_ref   1.034
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     282
_refine_ls_number_reflns         2225
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.034
_refine_ls_R_factor_all          0.0510
_refine_ls_R_factor_gt           0.0374
_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^)+(0.0431P)^2^+0.439P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0899
_refine_ls_wR_factor_ref         0.0992
_reflns_number_gt                1757
_reflns_number_total             2225
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            sg2168.cif
_cod_data_source_block           I
_cod_database_code               2213957
_cod_database_fobs_code          2213957