2-Ethyl-4-hydroxy-3a,4,9,9a-tetrahydro-4,9-[1',2']benzeno-1<i>H</i>-benz[<i>f</i>]isoindole-1,3(2<i>H</i>)-dione
He, Long; Ng, Seik Weng; Acta Crystallographica Section E 63 (2007) o602–o603; doi:10.1107/S1600536807000384

data_2212058
_publ_section_title
2-Ethyl-4-hydroxy-3a,4,9,9a-tetrahydro-4,9-[1',2']benzeno-1<i>H</i>-benz[<i>f</i>]isoindole-1,3(2<i>H</i>)-dione
_journal_coeditor_code           BT2237
_journal_issue                   2
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o602
_journal_page_last               o603
_journal_paper_doi               10.1107/S1600536807000384
_journal_volume                  63
_journal_year                    2007
_chemical_formula_iupac          'C20 H17 N O3'
_chemical_formula_moiety         'C20 H17 N O3'
_chemical_formula_sum            'C20 H17 N O3'
_chemical_formula_weight         319.35
_chemical_name_systematic
;2-Ethyl-4-hydroxy-3a,4,9,9a-tetrahydro-4,9-[1',2']benzeno-1H-benz[f]isoindole-
1,3(2H)-dione
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                74.57(2)
_cell_angle_beta                 85.06(2)
_cell_angle_gamma                68.06(2)
_cell_formula_units_Z            2
_cell_length_a                   7.743(2)
_cell_length_b                   8.133(2)
_cell_length_c                   13.718(4)
_cell_measurement_reflns_used    24
_cell_measurement_temperature    295(2)
_cell_measurement_theta_max      8.9
_cell_measurement_theta_min      4.7
_cell_volume                     772.3(4)
_computing_cell_refinement       DIFRAC
_computing_data_collection       'DIFRAC (Gabe <i>et al.</i>,  1993)'
_computing_data_reduction        'NRCVAX (Gabe <i>et al.</i>,  1989)'
_computing_molecular_graphics    'X-SEED (Barbour, 2001)'
_computing_publication_material  'publCIF (Westrip, 2006)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      295(2)
_diffrn_measured_fraction_theta_full 0.99
_diffrn_measured_fraction_theta_max 0.99
_diffrn_measurement_device_type  'Enraf--Nonius CAD-4 four-circle'
_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  0.007
_diffrn_reflns_av_sigmaI/netI    0.046
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -1
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            2710
_diffrn_reflns_theta_full        25.0
_diffrn_reflns_theta_max         25.0
_diffrn_reflns_theta_min         1.5
_diffrn_standards_decay_%        <1
_diffrn_standards_interval_count 300
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.093
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.373
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             336
_exptl_crystal_size_max          0.27
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.22
_refine_diff_density_max         0.22
_refine_diff_density_min         -0.17
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.05
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     229
_refine_ls_number_reflns         2707
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.05
_refine_ls_R_factor_all          0.083
_refine_ls_R_factor_gt           0.042
_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^)+(0.0656P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.107
_refine_ls_wR_factor_ref         0.118
_reflns_number_gt                1756
_reflns_number_total             2707
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            bt2237.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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 'Triclinic' changed to 'triclinic'
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_database_code               2212058
_cod_database_fobs_code          2212058