The effect of water molecules in stabilizing co-crystals of active pharmaceutical ingredients
Aakeröy, Christer B.; Forbes, Safiyyah; Desper, John; CrystEngComm 14 (2012) 2435–; doi:10.1039/c2ce06506a

data_7207594
_publ_section_title
;
 The effect of water molecules in stabilizing co-crystals of active
 pharmaceutical ingredients
;
_journal_issue                   7
_journal_name_full               CrystEngComm
_journal_page_first              2435
_journal_paper_doi               10.1039/c2ce06506a
_journal_volume                  14
_journal_year                    2012
_chemical_formula_moiety
;
(C12 H10 N4 O) (C6 H12 O2) (H2 O)
;
_chemical_formula_sum            'C18 H24 N4 O4'
_chemical_formula_weight         360.41
_chemical_name_systematic
;
242 (3-pyridyl)-CONH-N=CH-(2-pyridyl), hexanoic acid hydrate
;
_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                95.391(10)
_cell_angle_beta                 97.999(12)
_cell_angle_gamma                104.439(14)
_cell_formula_units_Z            2
_cell_length_a                   6.6573(13)
_cell_length_b                   8.1256(14)
_cell_length_c                   18.128(3)
_cell_measurement_reflns_used    1561
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.05
_cell_measurement_theta_min      2.25
_cell_volume                     931.9(3)
_computing_cell_refinement       'Bruker XSCANS'
_computing_data_collection       'Bruker XSCANS'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.940
_diffrn_measured_fraction_theta_max 0.940
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0855
_diffrn_reflns_av_sigmaI/netI    0.1094
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            6561
_diffrn_reflns_theta_full        27.51
_diffrn_reflns_theta_max         27.51
_diffrn_reflns_theta_min         1.14
_exptl_absorpt_coefficient_mu    0.092
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.284
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             384
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.272
_refine_diff_density_min         -0.341
_refine_diff_density_rms         0.075
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.894
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     247
_refine_ls_number_reflns         4031
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.894
_refine_ls_R_factor_all          0.1249
_refine_ls_R_factor_gt           0.0630
_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^)+(0.0950P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1541
_refine_ls_wR_factor_ref         0.1825
_reflns_number_gt                2060
_reflns_number_total             4031
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2ce06506a.txt
_cod_data_source_block           sf0608m(2A)
_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 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7207594