13-Hydroxy-4,16-dimethyl-4,16-diazapentacyclo[12.3.1.0^1,5^.0^5,13^.0^7,12^]octadeca-7(12),8,10-triene-6,18-dione
Suresh, J.; Gurunathan, K.; Kumar, R. Suresh; Perumal, S.; Lakshman, P. L. Nilantha; Acta Crystallographica Section E 65 (2009) o1163–o1164; doi:10.1107/S1600536809015293

data_2221583
_publ_section_title
13-Hydroxy-4,16-dimethyl-4,16-diazapentacyclo[12.3.1.0^1,5^.0^5,13^.0^7,12^]octadeca-7(12),8,10-triene-6,18-dione
_journal_coeditor_code           AT2770
_journal_issue                   5
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1163
_journal_page_last               o1164
_journal_paper_doi               10.1107/S1600536809015293
_journal_volume                  65
_journal_year                    2009
_chemical_formula_iupac          'C18 H20 N2 O3'
_chemical_formula_moiety         'C18 H20 N2 O3'
_chemical_formula_sum            'C18 H20 N2 O3'
_chemical_formula_weight         312.36
_chemical_name_systematic
;
13-Hydroxy-4,16-dimethyl-4,16-
diazapentacyclo[12.3.1.0^1,5^.0^5,13^.0^7,12^]octadeca-
7(12),8,10-triene-6,18-dione
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_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                 102.851(9)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.0862(5)
_cell_length_b                   11.6152(5)
_cell_length_c                   12.5670(6)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      25
_cell_measurement_theta_min      2
_cell_volume                     1577.70(14)
_computing_cell_refinement       'CAD-4 EXPRESS (Enraf--Nonius, 1994)'
_computing_data_collection       'CAD-4 EXPRESS (Enraf--Nonius, 1994)'
_computing_data_reduction        'XCAD4 (Harms & Wocadlo, 1996)'
_computing_molecular_graphics    'PLATON (Spek, 2009)'
_computing_publication_material  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Nonius MACH-3'
_diffrn_measurement_method       \w-2\q
_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  0.0455
_diffrn_reflns_av_sigmaI/netI    0.0266
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -1
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            3226
_diffrn_reflns_theta_full        24.97
_diffrn_reflns_theta_max         24.97
_diffrn_reflns_theta_min         2.22
_diffrn_standards_decay_%        0
_diffrn_standards_interval_time  60
_diffrn_standards_number         2
_exptl_absorpt_coefficient_mu    0.090
_exptl_absorpt_correction_T_max  0.9901
_exptl_absorpt_correction_T_min  0.9839
_exptl_absorpt_correction_type   psi-scan
_exptl_absorpt_process_details   '(North <i>et al.</i>,  1968)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.315
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             664
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.11
_refine_diff_density_max         0.155
_refine_diff_density_min         -0.181
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.039
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     211
_refine_ls_number_reflns         2764
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.039
_refine_ls_R_factor_all          0.0613
_refine_ls_R_factor_gt           0.0394
_refine_ls_shift/su_max_lt       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^)+(0.0616P)^2^+0.2971P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1074
_refine_ls_wR_factor_ref         0.1204
_reflns_number_gt                1978
_reflns_number_total             2764
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            at2770.cif
_cod_data_source_block           I
_cod_original_cell_volume        1577.70(12)
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               2221583
_cod_database_fobs_code          2221583