Cocrystals of 5-fluorocytosine. II. Coformers with variable hydrogen-bonding sites
Tutughamiarso, Maya; Egert, Ernst; Acta Crystallographica Section B 68 (2012) 444–452; doi:10.1107/S0108768112029977

data_2105167
_publ_section_title
;
 Cocrystals of 5-fluorocytosine. II. Coformers with variable
 hydrogen-bonding sites
;
_journal_coeditor_code           GP5053
_journal_issue                   4
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              444
_journal_page_last               452
_journal_paper_doi               10.1107/S0108768112029977
_journal_volume                  68
_journal_year                    2012
_chemical_formula_moiety         'C6 H7 N3 O3'
_chemical_formula_sum            'C6 H7 N3 O3'
_chemical_formula_weight         169.15
_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                 102.194(9)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.4303(12)
_cell_length_b                   7.1695(8)
_cell_length_c                   8.9753(11)
_cell_measurement_reflns_used    1601
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      25.99
_cell_measurement_theta_min      3.38
_cell_volume                     718.93(14)
_computing_cell_refinement       'X-Area (Stoe & Cie, 2001)'
_computing_data_collection       'X-Area (Stoe & Cie, 2001)'
_computing_data_reduction        'X-Area (Stoe & Cie, 2001)'
_computing_molecular_graphics
'Mercury (Macrae et al., 2008) and XP (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'STOE IPDS II two-circle-diffractometer'
_diffrn_measurement_method       \w
_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  0.1873
_diffrn_reflns_av_sigmaI/netI    0.1425
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            3983
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.55
_diffrn_reflns_theta_min         3.38
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.128
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.563
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             352
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.277
_refine_diff_density_min         -0.269
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.853
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     119
_refine_ls_number_reflns         1337
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      0.852
_refine_ls_R_factor_all          0.1052
_refine_ls_R_factor_gt           0.0608
_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^)+(0.0642P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1436
_refine_ls_wR_factor_ref         0.1604
_reflns_number_gt                773
_reflns_number_total             1337
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            gp5053.cif
_cod_data_source_block           II
_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 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2105167