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#$Date: 2025-08-18 18:02:58 +0300 (Mon, 18 Aug 2025) $
#$Revision: 301777 $
#$URL: file:///home/coder/svn-repositories/cod/cif/1/52/01/1520169.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/
#
# All data on this site have been placed in the public domain by the
# contributors.
#
data_1520169
loop_
_publ_author_name
'Callear, Samantha K.'
'Hursthouse, Michael B.'
_publ_section_title
;
 DL-Tartaric acid 2-imidazolidinone
;
_journal_name_full               'Crystal Structure Report Archive'
_journal_page_first              526
_journal_year                    2008
_chemical_formula_sum            'C7 H12 N2 O7'
_chemical_formula_weight         236.19
_chemical_name_systematic
;
DL-Tartaric acid and 2-imidazolidinone
;
_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                90.00
_cell_angle_beta                 97.060(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   5.1062(11)
_cell_length_b                   18.198(4)
_cell_length_c                   10.432(2)
_cell_measurement_reflns_used    930
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      25.79
_cell_measurement_theta_min      3.94
_cell_volume                     962.0(3)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      120(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker SMART APEX2 CCD diffractometer'
_diffrn_measurement_method       'fine-slice ω scans'
_diffrn_radiation_monochromator  'silicon 111'
_diffrn_radiation_source         'Daresbury SRS station 9.8'
_diffrn_radiation_type           synchrotron
_diffrn_radiation_wavelength     0.6710
_diffrn_reflns_av_R_equivalents  0.0531
_diffrn_reflns_av_sigmaI/netI    0.0474
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            7832
_diffrn_reflns_theta_full        24.79
_diffrn_reflns_theta_max         24.79
_diffrn_reflns_theta_min         2.81
_diffrn_standards_decay_%        5
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.147
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker SADABS'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.631
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             496
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.01
_refine_diff_density_max         0.365
_refine_diff_density_min         -0.253
_refine_diff_density_rms         0.064
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.101
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     153
_refine_ls_number_reflns         1961
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.101
_refine_ls_R_factor_all          0.0669
_refine_ls_R_factor_gt           0.0440
_refine_ls_shift/su_max          0.089
_refine_ls_shift/su_mean         0.004
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[σ²(Fo²)+(0.0595P)²+0.0972P] where P=(Fo²+2Fc²)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1082
_refine_ls_wR_factor_ref         0.1189
_reflns_number_gt                1444
_reflns_number_total             1961
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            eCrystal-526.cif
_cod_data_source_block           ssg0306
_cod_depositor_comments
;
Citation :
Callear, Samantha K. and Hursthouse, Michael B. (2008) 
University of Southampton, Crystal Structure Report Archive. 
(doi:10.5258/ecrystals/526)

More at:
http://ecrystals.chem.soton.ac.uk/526/
;
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               1520169
loop_
_symmetry_equiv_pos_as_xyz
'x, y, z'
'-x, y+1/2, -z+1/2'
'-x, -y, -z'
'x, -y-1/2, z-1/2'
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_symmetry_multiplicity
_atom_site_calc_flag
_atom_site_refinement_flags
_atom_site_disorder_assembly
_atom_site_disorder_group
C1 C 0.6361(4) 0.56576(11) 0.1604(2) 0.0190(5) Uani 1 1 d . . .
C2 C 0.5051(4) 0.49326(11) 0.1877(2) 0.0199(5) Uani 1 1 d . . .
H2 H 0.6267 0.4528 0.1683 0.024 Uiso 1 1 calc R . .
C3 C 0.4862(4) 0.49157(11) 0.3337(2) 0.0210(5) Uani 1 1 d . . .
H3 H 0.6697 0.4908 0.3800 0.025 Uiso 1 1 calc R . .
C4 C 0.3463(4) 0.42249(12) 0.3705(2) 0.0206(5) Uani 1 1 d . . .
O1A O 0.8715(3) 0.57578(8) 0.19327(15) 0.0252(4) Uani 1 1 d . . .
O1B O 0.4758(3) 0.61498(8) 0.10313(15) 0.0235(4) Uani 1 1 d . . .
H1 H 0.5593 0.6540 0.0939 0.049(9) Uiso 1 1 calc R . .
O2 O 0.2592(3) 0.48121(8) 0.11205(14) 0.0229(4) Uani 1 1 d . . .
H2O H 0.1523 0.5141 0.1278 0.034 Uiso 1 1 calc R . .
O3 O 0.3586(3) 0.55494(8) 0.37336(14) 0.0224(4) Uani 1 1 d . . .
H3O H 0.1949 0.5506 0.3536 0.034 Uiso 1 1 calc R . .
O4A O 0.4812(3) 0.36240(8) 0.35348(15) 0.0233(4) Uani 1 1 d . . .
H4 H 0.3970 0.3256 0.3747 0.026(7) Uiso 1 1 calc R . .
O4B O 0.1318(3) 0.42435(8) 0.40880(15) 0.0251(4) Uani 1 1 d . . .
C22 C 0.1236(4) 0.23673(11) 0.5131(2) 0.0204(5) Uani 1 1 d . . .
C24 C -0.1703(4) 0.27755(12) 0.6500(2) 0.0239(5) Uani 1 1 d . . .
H24A H -0.3582 0.2921 0.6331 0.029 Uiso 1 1 calc R . .
H24B H -0.0869 0.3029 0.7286 0.029 Uiso 1 1 calc R . .
C25 C -0.1388(4) 0.19345(12) 0.6615(2) 0.0232(5) Uani 1 1 d . . .
H25A H -0.0980 0.1780 0.7527 0.028 Uiso 1 1 calc R . .
H25B H -0.2999 0.1677 0.6223 0.028 Uiso 1 1 calc R . .
N21 N 0.0843(4) 0.17954(11) 0.58870(18) 0.0251(4) Uani 1 1 d . . .
H21 H 0.1792 0.1391 0.5941 0.082(12) Uiso 1 1 calc R . .
N23 N -0.0298(4) 0.29246(10) 0.53864(19) 0.0263(5) Uani 1 1 d . . .
H23 H -0.0452 0.3335 0.4939 0.045(8) Uiso 1 1 calc R . .
O22 O 0.2864(3) 0.23811(8) 0.43046(15) 0.0233(4) Uani 1 1 d . . .
loop_
_atom_type_symbol
_atom_type_description
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
C C 0.0033 0.0016 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
H H 0.0000 0.0000 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
N N 0.0061 0.0033 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
O O 0.0106 0.0060 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
loop_
_geom_angle_atom_site_label_1
_geom_angle_atom_site_label_2
_geom_angle_atom_site_label_3
_geom_angle
_geom_angle_site_symmetry_1
_geom_angle_site_symmetry_3
O1A C1 O1B 124.41(19) . .
O1A C1 C2 121.07(18) . .
O1B C1 C2 114.50(17) . .
O2 C2 C1 114.18(17) . .
O2 C2 C3 112.93(16) . .
C1 C2 C3 106.61(16) . .
O2 C2 H2 107.6 . .
C1 C2 H2 107.6 . .
C3 C2 H2 107.6 . .
O3 C3 C4 110.76(17) . .
O3 C3 C2 111.17(17) . .
C4 C3 C2 110.81(17) . .
O3 C3 H3 108.0 . .
C4 C3 H3 108.0 . .
C2 C3 H3 108.0 . .
O4B C4 O4A 125.25(19) . .
O4B C4 C3 122.18(19) . .
O4A C4 C3 112.55(17) . .
C1 O1B H1 109.5 . .
C2 O2 H2O 109.5 . .
C3 O3 H3O 109.5 . .
C4 O4A H4 109.5 . .
O22 C22 N23 124.96(19) . .
O22 C22 N21 125.10(19) . .
N23 C22 N21 109.93(18) . .
N23 C24 C25 100.88(17) . .
N23 C24 H24A 111.6 . .
C25 C24 H24A 111.6 . .
N23 C24 H24B 111.6 . .
C25 C24 H24B 111.6 . .
H24A C24 H24B 109.4 . .
N21 C25 C24 102.21(17) . .
N21 C25 H25A 111.3 . .
C24 C25 H25A 111.3 . .
N21 C25 H25B 111.3 . .
C24 C25 H25B 111.3 . .
H25A C25 H25B 109.2 . .
C22 N21 C25 110.73(18) . .
C22 N21 H21 124.6 . .
C25 N21 H21 124.6 . .
C22 N23 C24 112.11(18) . .
C22 N23 H23 123.9 . .
C24 N23 H23 123.9 . .
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
_geom_bond_site_symmetry_2
C1 O1A 1.222(2) .
C1 O1B 1.307(3) .
C1 C2 1.522(3) .
C2 O2 1.416(2) .
C2 C3 1.538(3) .
C2 H2 1.0000 .
C3 O3 1.411(2) .
C3 C4 1.518(3) .
C3 H3 1.0000 .
C4 O4B 1.212(3) .
C4 O4A 1.316(2) .
O1B H1 0.8400 .
O2 H2O 0.8400 .
O3 H3O 0.8400 .
O4A H4 0.8400 .
C22 O22 1.269(2) .
C22 N23 1.329(3) .
C22 N21 1.336(3) .
C24 N23 1.464(3) .
C24 C25 1.542(3) .
C24 H24A 0.9900 .
C24 H24B 0.9900 .
C25 N21 1.466(3) .
C25 H25A 0.9900 .
C25 H25B 0.9900 .
N21 H21 0.8800 .
N23 H23 0.8800 .
loop_
_geom_hbond_atom_site_label_D
_geom_hbond_atom_site_label_H
_geom_hbond_atom_site_label_A
_geom_hbond_distance_DH
_geom_hbond_distance_HA
_geom_hbond_distance_DA
_geom_hbond_angle_DHA
_geom_hbond_site_symmetry_A
O4A H4 O22 0.84 1.81 2.636(2) 167.5 .
N23 H23 O4B 0.88 2.13 2.924(2) 150.0 .
O1B H1 O22 0.84 1.75 2.593(2) 176.1 2_655
O2 H2O O1A 0.84 2.01 2.831(2) 167.1 1_455
O3 H3O O1A 0.84 2.25 2.952(2) 141.4 1_455
N21 H21 O2 0.88 2.23 3.060(2) 157.1 4_566
loop_
_cod_related_entry_id
_cod_related_entry_database
_cod_related_entry_code
1 PubChem 139045422
