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_2105171
_publ_section_title
;
 Cocrystals of 5-fluorocytosine. II. Coformers with variable
 hydrogen-bonding sites
;
_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         'C5 H7 N3 O, C4 H6 N4 O, 2(C4 H9 N O)'
_chemical_formula_sum            'C17 H31 N9 O4'
_chemical_formula_weight         425.51
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                88.329(12)
_cell_angle_beta                 89.875(12)
_cell_angle_gamma                75.513(12)
_cell_formula_units_Z            2
_cell_length_a                   6.9824(11)
_cell_length_b                   9.1224(14)
_cell_length_c                   17.651(3)
_cell_measurement_reflns_used    4489
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      25.8
_cell_measurement_theta_min      3.24
_cell_volume                     1088.1(3)
_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 0.992
_diffrn_measured_fraction_theta_max 0.992
_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  0.0848
_diffrn_reflns_av_sigmaI/netI    0.0874
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            8046
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.02
_diffrn_reflns_theta_min         3.23
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.096
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.299
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             456
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.291
_refine_diff_density_min         -0.289
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.047
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     308
_refine_ls_number_reflns         3820
_refine_ls_number_restraints     25
_refine_ls_restrained_S_all      1.080
_refine_ls_R_factor_all          0.1191
_refine_ls_R_factor_gt           0.0755
_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^)+(0.1242P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2138
_refine_ls_wR_factor_ref         0.2335
_reflns_number_gt                2241
_reflns_number_total             3820
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            gp5053.cif
_cod_data_source_block           V
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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_database_code               2105171