#------------------------------------------------------------------------------
#$Date: 2022-03-02 05:20:08 +0200 (Wed, 02 Mar 2022) $
#$Revision: 273207 $
#$URL: file:///home/coder/svn-repositories/cod/cif/1/56/65/1566517.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/. The original data for this entry
# were provided by IUCr Journals, http://journals.iucr.org/.
#
# The file may be used within the scientific community so long as
# proper attribution is given to the journal article from which the
# data were obtained.
#
data_1566517
loop_
_publ_author_name
'Ruth, Paul Niklas'
'Herbst-Irmer, Regine'
'Stalke, Dietmar'
_publ_section_title
;
 Hirshfeld atom refinement based on projector augmented wave densities
 with periodic boundary conditions
;
_journal_issue                   2
_journal_name_full               IUCrJ
_journal_page_first              286
_journal_page_last               297
_journal_paper_doi               10.1107/S2052252522001385
_journal_volume                  9
_journal_year                    2022
_chemical_formula_moiety         'C H4 N2 O'
_chemical_formula_sum            'C H4 N2 O'
_chemical_formula_weight         60.06
_chemical_name_common            urea
_space_group_crystal_system      tetragonal
_space_group_IT_number           113
_space_group_name_Hall           'P -4 2ab'
_space_group_name_H-M_alt        'P -4 21 m'
_atom_sites_solution_hydrogens   difmap
_audit_creation_method           'xHARPY 0.1'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   5.5780(6)
_cell_length_b                   5.5780(6)
_cell_length_c                   4.6860(7)
_cell_measurement_reflns_used    17
_cell_measurement_temperature    123(2)
_cell_volume                     145.80(3)
_computing_cell_refinement       'KM6-CH software'
_computing_data_collection       'KM6-CH software'
_computing_data_reduction        XD_RED
_computing_publication_material  'xHARPY 0.1'
_computing_structure_refinement  'xHARPY 0.1'
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 1.0
_diffrn_measured_fraction_theta_max 0.982
_diffrn_measurement_device_type
;
KM6-CH six-circle κ diffractometer operated as standard four-circle
κ diffractometer with detector circle in the vertical plane to profit
from the linear polarization of the synchrotron beam.
;
_diffrn_measurement_method       ω-scan
_diffrn_radiation_type           synchrotron
_diffrn_radiation_wavelength     0.5996
_diffrn_reflns_av_R_equivalents  0.0141
_diffrn_reflns_av_unetI/netI     0.0148
_diffrn_reflns_Laue_measured_fraction_full 1.0
_diffrn_reflns_Laue_measured_fraction_max 0.982
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       0
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       0
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            1022
_diffrn_reflns_point_group_measured_fraction_full 0.656
_diffrn_reflns_point_group_measured_fraction_max 0.562
_diffrn_reflns_theta_full        21.085
_diffrn_reflns_theta_max         57.401
_diffrn_reflns_theta_min         3.668
_exptl_absorpt_coefficient_mu    0.081
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.368
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             64
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.2038
_refine_diff_density_min         -0.3696
_refine_diff_density_rms         0.0381
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.924
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     27
_refine_ls_number_reflns         1022
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0286
_refine_ls_R_factor_gt           0.014
_refine_ls_shift/su_max          0.0
_refine_ls_shift/su_mean         0.0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details     w=1/[σ²(Fo²)]
_refine_ls_weighting_scheme      sigma
_refine_ls_wR_factor_gt          0.0179
_refine_ls_wR_factor_ref         0.0179
_reflns_Friedel_coverage         0.0
_reflns_Friedel_fraction_full    0.0
_reflns_Friedel_fraction_max     0.0
_reflns_number_gt                803
_reflns_number_total             1022
_reflns_threshold_expression     'I > 2σ(I)'
_cod_data_source_file            fc5060.cif
_cod_data_source_block           urea_xHARPy_revPBE
_cod_original_cell_volume        145.80(4)
_cod_database_code               1566517
loop_
_space_group_symop_operation_xyz
'x, y, z'
'y, -x, -z'
'-x, -y, z'
'-y, x, -z'
'x+1/2, -y+1/2, -z'
'-y+1/2, -x+1/2, z'
'-x+1/2, y+1/2, -z'
'y+1/2, x+1/2, z'
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
_atom_site_adp_type
_atom_site_occupancy
_atom_site_site_symmetry_order
O O 0.0 0.5 0.59624(3) 0.01521(3) Uani 1.0 4
N N 0.14477(2) 0.64477(2) 0.17851(3) 0.02230(3) Uani 1.0 2
H1 H 0.2549(4) 0.7549(4) 0.2851(5) 0.0434(12) Uani 1.0 2
H2 H 0.1425(4) 0.6425(4) -0.0352(7) 0.0398(9) Uani 1.0 2
C C 0.0 0.5 0.32824(4) 0.01184(3) Uani 1.0 4
loop_
_atom_type_symbol
_atom_type_description
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
C C 0.0020 0.0010 'HAR in xHARPy 0.1'
H H 0.0000 0.0000 'HAR in xHARPy 0.1'
N N 0.0040 0.0020 'HAR in xHARPy 0.1'
O O 0.0070 0.0040 'HAR in xHARPy 0.1'
loop_
_geom_angle_atom_site_label_1
_geom_angle_atom_site_label_2
_geom_angle_atom_site_label_3
_geom_angle
C N H1 118.53(14)
C N H2 120.55(18)
H1 N H2 120.9(2)
O C N 121.567(11)
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
O C 1.2558(3)
N C 1.3404(2)
N H1 1.002(3)
N H2 1.002(3)
