1,5-Dichloro-3,6-diphenyl-3-azabicyclo[3.2.0]hept-6-ene-2,4-dione
Anwar Usman; Ibrahim Abdul Razak; Hoong-Kun Fun; Suchada Chantrapromma; Bao-Guo Zhao; Jian-Hua Xu; Acta Crystallographica Section E 57 (2001) o990–o991; doi:10.1107/S1600536801015665

data_2200641
_publ_section_title
;
 1,5-Dichloro-3,6-diphenyl-3-azabicyclo[3.2.0]hept-6-ene-2,4-dione
;
_journal_issue                   10
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o990
_journal_page_last               o991
_journal_paper_doi               10.1107/S1600536801015665
_journal_volume                  57
_journal_year                    2001
_chemical_formula_iupac          'C18 H11 Cl2 N O2'
_chemical_formula_moiety         'C18 H11 Cl2 N O2'
_chemical_formula_sum            'C18 H11 Cl2 N O2'
_chemical_formula_weight         344.18
_chemical_melting_point          425
_chemical_name_systematic
;
1,5-Dichloro-3,6-diphenyl-3-azabicyclo[3.2.0]-hept-6-ene-2,4-dione
;
_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'
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 97.4100(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.1468(2)
_cell_length_b                   14.8464(5)
_cell_length_c                   15.1091(5)
_cell_measurement_reflns_used    7131
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      28.33
_cell_measurement_theta_min      2.72
_cell_volume                     1589.75(9)
_computing_cell_refinement       'SAINT (Siemens, 1996)'
_computing_data_collection       'SMART (Siemens, 1996)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    SHELXTL
_computing_publication_material
;
SHELXTL, PARST (Nardelli, 1995) and PLATON (Spek, 1990)
;
_computing_structure_refinement  SHELXTL
_computing_structure_solution    'SHELXTL (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 8.33
_diffrn_measured_fraction_theta_full .977
_diffrn_measured_fraction_theta_max .977
_diffrn_measurement_device_type
;
Siemens 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     .71073
_diffrn_reflns_av_R_equivalents  .084
_diffrn_reflns_av_sigmaI/netI    .1005
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            10982
_diffrn_reflns_theta_full        28.31
_diffrn_reflns_theta_max         28.31
_diffrn_reflns_theta_min         2.72
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count none
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    .416
_exptl_absorpt_correction_T_max  .907
_exptl_absorpt_correction_T_min  .838
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.438
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       slab
_exptl_crystal_F_000             704
_exptl_crystal_size_max          .44
_exptl_crystal_size_mid          .34
_exptl_crystal_size_min          .24
_refine_diff_density_max         .38
_refine_diff_density_min         -.43
_refine_ls_extinction_coef       .025(2)
_refine_ls_extinction_method     SHELXTL
_refine_ls_goodness_of_fit_ref   .89
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     209
_refine_ls_number_reflns         3864
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      .89
_refine_ls_R_factor_all          .076
_refine_ls_R_factor_gt           .055
_refine_ls_shift/su_max          <0.001
_refine_ls_shift/su_mean         <0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w = 1/[\s^2^(Fo^2^)+(0.0416P)^2^] where P = (Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         .132
_reflns_number_gt                2514
_reflns_number_total             3864
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ci6063.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:

'_chemical_melting_point' value '425K' was changed to '425' - the
value should be numeric and without a unit designator.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 

The following automatic conversions were performed:

'_chemical_melting_point' value '425K' was changed to '425' - the
value should be numeric and without a unit
designator.

'_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_sg_symbol_H-M      'P 21/c'
_cod_database_code               2200641
_cod_database_fobs_code          2200641