N,N'-bis(4-Chlorophenyl)urea
Huth, Susanne L.; Threlfall, Terry L.; Hursthouse, Michael B.; Crystal Structure Report Archive  (2008) 682–; doi:

data_1520179
_publ_section_title
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 N,N'-bis(4-Chlorophenyl)urea
;
_journal_name_full               'Crystal Structure Report Archive'
_journal_page_first              682
_journal_year                    2008
_chemical_formula_sum            'C13 H10 Cl2 N2 O'
_chemical_formula_weight         281.13
_chemical_name_systematic
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N,N'-bis(4-Chlorophenyl)urea
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 96.281(8)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   27.097(6)
_cell_length_b                   4.5781(7)
_cell_length_c                   9.9007(19)
_cell_measurement_reflns_used    44677
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      2.91
_cell_volume                     1220.8(4)
_computing_cell_refinement
'DENZO (Otwinowski & Minor, 1997) & COLLECT (Hooft, R.W.W., 1998)'
_computing_data_collection       'COLLECT (Hooft, R.W.W., 1998)'
_computing_data_reduction
'DENZO (Otwinowski & Minor, 1997) & COLLECT (Hooft, R.W.W., 1998)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      120(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type
'Bruker-Nonius APEX II CCD camera on \k-goniostat'
_diffrn_measurement_method       '\f & \w scans'
_diffrn_radiation_monochromator  '10cm confocal mirrors'
_diffrn_radiation_source         'Bruker-Nonius FR591 rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0559
_diffrn_reflns_av_sigmaI/netI    0.0438
_diffrn_reflns_limit_h_max       34
_diffrn_reflns_limit_h_min       -34
_diffrn_reflns_limit_k_max       5
_diffrn_reflns_limit_k_min       -5
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            8830
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         3.03
_exptl_absorpt_coefficient_mu    0.519
_exptl_absorpt_correction_T_max  0.9948
_exptl_absorpt_correction_T_min  0.8599
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS 2007/2 (Sheldrick, G.M., 2007)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.530
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       sheet
_exptl_crystal_F_000             576
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.01
_refine_diff_density_max         0.397
_refine_diff_density_min         -0.370
_refine_diff_density_rms         0.089
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.107
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     87
_refine_ls_number_reflns         1391
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.107
_refine_ls_R_factor_all          0.0969
_refine_ls_R_factor_gt           0.0714
_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^)+(0.0492P)^2^+8.1362P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1602
_refine_ls_wR_factor_ref         0.1774
_reflns_number_gt                1061
_reflns_number_total             1391
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            eCrystal-682.cif
_cod_data_source_block           2008lsh053
_cod_depositor_comments
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Citation :
Huth, Susanne L. and Threlfall, Terry L. and Hursthouse, Michael B. (2008) 
University of Southampton, Crystal Structure Report Archive. 
(doi:10.5258/ecrystals/682)

More at:
http://ecrystals.chem.soton.ac.uk/682/

The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to the built-in table from CIF Core dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 3392 2015-05-12 13:50:21Z andrius 
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_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               1520179