Glycoluril Dimers Bearing Hydrogen Atoms on Their Convex Face and Their Self-Assembly in the Solid State
Marek Stancl; Marek Necas; Jan Taraba; Vladimir Sindelar; Journal of Organic Chemistry 73 (2008) 4671–4675; doi:10.1021/jo800699s

data_4023493
_publ_section_title
;
 Glycoluril Dimers Bearing Hydrogen Atoms on Their Convex
 Face and Their Self-Assembly in the Solid State
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              4671
_journal_page_last               4675
_journal_paper_doi               10.1021/jo800699s
_journal_volume                  73
_journal_year                    2008
_chemical_formula_sum            'C16 H24 N8 O6'
_chemical_formula_weight         424.43
_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                 112.698(9)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.2374(10)
_cell_length_b                   11.5705(8)
_cell_length_c                   11.8722(8)
_cell_measurement_temperature    120(2)
_cell_volume                     1804.3(2)
_computing_cell_refinement       'Xcalibur (Oxford Diffraction Ltd, 2003)'
_computing_data_collection       'Xcalibur (Oxford Diffraction Ltd, 2003)'
_computing_data_reduction        'Xcalibur (Oxford Diffraction Ltd, 2003)'
_computing_molecular_graphics    'SHELXTL (Bruker, 1998)'
_computing_publication_material  'SHELXTL (Bruker, 1998)'
_computing_structure_refinement  'SHELXTL (Bruker, 1998)'
_computing_structure_solution    'SHELXTL (Bruker, 1998)'
_diffrn_ambient_temperature      120(2)
_diffrn_detector_area_resol_mean '0.06 mm'
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Kuma KM-4 CCD diffractometer'
_diffrn_measurement_method       '\w scan'
_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  0.0200
_diffrn_reflns_av_sigmaI/netI    0.0236
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            15053
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         3.35
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.122
_exptl_absorpt_correction_T_max  1.0138
_exptl_absorpt_correction_T_min  0.9846
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_density_diffrn    1.562
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             896
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.30
_refine_diff_density_max         0.193
_refine_diff_density_min         -0.214
_refine_diff_density_rms         0.044
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.149
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     297
_refine_ls_number_reflns         3174
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.149
_refine_ls_R_factor_all          0.0494
_refine_ls_R_factor_gt           0.0324
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0581P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0870
_refine_ls_wR_factor_ref         0.0981
_reflns_number_gt                2402
_reflns_number_total             3174
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo800699s-File004_3.cif
_cod_data_source_block           3c
_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 
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4023493