Ethyl 4-(2,5-dioxo-2,5-dihydro-1<i>H</i>-pyrrol-1-yl)benzoate
Vasu; K. A. Nirmala; Deepak Chopra; M. Vishwas; Acta Crystallographica Section E 59 (2003) o1549–o1550; doi:10.1107/S1600536803020701

data_2202820
_publ_section_title
;
 Ethyl 4-(2,5-dioxo-2,5-dihydro-1<i>H</i>-pyrrol-1-yl)benzoate
;
_journal_issue                   10
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1549
_journal_page_last               o1550
_journal_paper_doi               10.1107/S1600536803020701
_journal_volume                  59
_journal_year                    2003
_chemical_formula_iupac          'C13 H11 N O4'
_chemical_formula_moiety         'C13 H11 N O4'
_chemical_formula_sum            'C13 H11 N O4'
_chemical_formula_weight         245.23
_chemical_name_systematic
;
Ethyl 4-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)benzoate
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90
_cell_angle_beta                 96.364(7)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   12.028(6)
_cell_length_b                   7.358(4)
_cell_length_c                   13.561(7)
_cell_measurement_reflns_used    775
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      25.5
_cell_measurement_theta_min      2.2
_cell_volume                     1192.8(11)
_computing_cell_refinement       SMART
_computing_data_collection       'SMART (Bruker, 1998)'
_computing_data_reduction        'SAINT (Bruker, 1998)'
_computing_molecular_graphics
'ORTEP-3 for Windows (Farrugia, 1997) and CAMERON (Watkin, 1993)'
_computing_publication_material  'PLATON (Spek, 1990)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR92 (Altomare, 1999)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.955
_diffrn_measurement_device_type  'Bruker SMART 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  0.0134
_diffrn_reflns_av_sigmaI/netI    0.0133
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            8371
_diffrn_reflns_reduction_process
;
 ?
;
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         26.37
_diffrn_reflns_theta_min         3.02
_exptl_absorpt_coefficient_mu    0.103
_exptl_absorpt_correction_T_max  0.9798
_exptl_absorpt_correction_T_min  0.9031
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            'pale yellow'
_exptl_crystal_density_diffrn    1.365
_exptl_crystal_density_method    'Not Measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             512
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.332
_refine_diff_density_min         -0.314
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.000
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     207
_refine_ls_number_reflns         2328
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.000
_refine_ls_R_factor_all          0.0516
_refine_ls_R_factor_gt           0.0441
_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^)+(0.0933P)^2^+0.1715P] where P = (Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1284
_refine_ls_wR_factor_ref         0.1380
_reflns_number_gt                1965
_reflns_number_total             2328
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ob6303.cif
_cod_data_source_block           I
_cod_depositor_comments
;
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_cell_volume        1192.9(11)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2202820
_cod_database_fobs_code          2202820