2-[Hydroxy(4-nitrophenyl)methyl]cyclopent-2-en-1-one
Huo, Fangjun; Yin, Caixia; Guo, Wei; Xia, Chizhong; Acta Crystallographica Section E 60 (2004) o486–o487; doi:10.1107/S1600536804004465

data_2203523
_publ_section_title
;
 2-[Hydroxy(4-nitrophenyl)methyl]cyclopent-2-en-1-one
;
_journal_issue                   4
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o486
_journal_page_last               o487
_journal_paper_doi               10.1107/S1600536804004465
_journal_volume                  60
_journal_year                    2004
_chemical_formula_iupac          'C12 H11 N O4'
_chemical_formula_moiety         'C12 H11 N O4'
_chemical_formula_sum            'C12 H11 N O4'
_chemical_formula_weight         233.22
_chemical_melting_point          409
_chemical_name_common
;
2-[Hydroxy(4-nitrophenyl)methyl]-cyclopent-2-en-1-one
;
_chemical_name_systematic
;
2-[Hydroxy(4-nitrophenyl)methyl]-cyclopent-2-en-1-one
;
_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
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 95.479(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.746(4)
_cell_length_b                   11.657(4)
_cell_length_c                   7.250(2)
_cell_measurement_reflns_used    5880
_cell_measurement_temperature    183(2)
_cell_measurement_theta_max      21.2
_cell_measurement_theta_min      2.37
_cell_volume                     1072.3(6)
_computing_cell_refinement       SMART
_computing_data_collection       'SMART (Bruker,2000)'
_computing_data_reduction        'SAINT and SHELXTL (Bruker,2000)'
_computing_molecular_graphics    SHELXTL
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      183(2)
_diffrn_detector_area_resol_mean '100x100 microns'
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker SMART CCD area-detector'
_diffrn_measurement_method       \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  0.0333
_diffrn_reflns_av_sigmaI/netI    0.0553
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            4315
_diffrn_reflns_theta_full        25.01
_diffrn_reflns_theta_max         25.01
_diffrn_reflns_theta_min         1.61
_diffrn_standards_decay_%        2.42
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.110
_exptl_absorpt_correction_T_max  0.9891
_exptl_absorpt_correction_T_min  0.9784
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick,1996)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.445
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             488
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.685
_refine_diff_density_min         -0.197
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.109
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     155
_refine_ls_number_reflns         1885
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.109
_refine_ls_R_factor_all          0.0972
_refine_ls_R_factor_gt           0.0694
_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^)+(0.0805P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1566
_refine_ls_wR_factor_ref         0.1708
_reflns_number_gt                1379
_reflns_number_total             1885
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ww6165.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        1072.2(6)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2203523
_cod_database_fobs_code          2203523