Co-Crystals and Co-Crystal Hydrates of the Antibiotic Nitrofurantoin: Structural Studies and Physicochemical Properties
Vangala, Venu R.; Chow, Pui Shan; Tan, Reginald B. H.; Crystal Growth & Design 12 (2012) 5925–; doi:10.1021/cg300887p

data_4506801
_publ_section_title
;
 Co-Crystals and Co-Crystal Hydrates of the Antibiotic Nitrofurantoin:
 Structural Studies and Physicochemical Properties
;
_journal_issue                   12
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              5925
_journal_paper_doi               10.1021/cg300887p
_journal_volume                  12
_journal_year                    2012
_chemical_formula_moiety         'C8 H6 N4 O5, C H4 N2 O'
_chemical_formula_sum            'C9 H10 N6 O6'
_chemical_formula_weight         298.23
_chemical_name_common            '1:1 cocrystal of nitrofurantoin and urea'
_chemical_name_systematic        '1:1 cocrystal of nitrofurantoin and urea'
_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                 110.95(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   6.6779(13)
_cell_length_b                   13.648(3)
_cell_length_c                   14.003(4)
_cell_measurement_reflns_used    3031
_cell_measurement_temperature    110(2)
_cell_measurement_theta_max      31.0604
_cell_measurement_theta_min      2.1569
_cell_volume                     1191.9(5)
_computing_cell_refinement       'CrystalClear (Rigaku Inc., 2007)'
_computing_data_collection       'CrystalClear (Rigaku Inc., 2007)'
_computing_data_reduction        'CrystalClear (Rigaku Inc., 2007)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      110(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Rigaku Saturn CCD area detector'
_diffrn_measurement_method       '\w scans'
_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  0.0155
_diffrn_reflns_av_sigmaI/netI    0.0139
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            7309
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         2.99
_exptl_absorpt_coefficient_mu    0.142
_exptl_absorpt_correction_T_max  0.9695
_exptl_absorpt_correction_T_min  0.9547
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS, Rigaku 2007)'
_exptl_crystal_colour            Yellow
_exptl_crystal_density_diffrn    1.662
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Needle
_exptl_crystal_F_000             616
_exptl_crystal_size_max          0.33
_exptl_crystal_size_mid          0.26
_exptl_crystal_size_min          0.22
_refine_diff_density_max         0.184
_refine_diff_density_min         -0.302
_refine_diff_density_rms         0.053
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.114
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     190
_refine_ls_number_reflns         2080
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.114
_refine_ls_R_factor_all          0.0410
_refine_ls_R_factor_gt           0.0403
_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^)+(0.0469P)^2^+0.6460P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0951
_refine_ls_wR_factor_ref         0.0958
_reflns_number_gt                2033
_reflns_number_total             2080
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg300887p_si_001.cif
_cod_data_source_block           NF-urea(1:1)
_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               4506801