Polymorphs, hydrates and solvates of a co-crystal of caffeine with anthranilic acid
Madusanka, Nadeesh; Eddleston, Mark D.; Arhangelskis, Mihails; Jones, William; Acta Crystallographica Section B 70 (2014) 72–80; doi:10.1107/S2052520613033167

data_2105785
_publ_section_title
;
 Polymorphs, hydrates and solvates of a co-crystal of caffeine with
 anthranilic acid
;
_journal_issue                   1
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              72
_journal_page_last               80
_journal_paper_doi               10.1107/S2052520613033167
_journal_volume                  70
_journal_year                    2014
_chemical_formula_moiety         'C8 H10 N4 O2, C7 H7 N O2, C7 H8'
_chemical_formula_sum            'C22 H25 N5 O4'
_chemical_formula_weight         423.47
_chemical_name_common            'caffeine:anthranilic acid mono toluene'
_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                87.100(2)
_cell_angle_beta                 88.572(2)
_cell_angle_gamma                86.065(2)
_cell_formula_units_Z            4
_cell_length_a                   6.7113(3)
_cell_length_b                   13.5803(6)
_cell_length_c                   23.579(2)
_cell_measurement_reflns_used    14929
_cell_measurement_temperature    180(2)
_cell_measurement_theta_max      22.46
_cell_measurement_theta_min      1.00
_cell_volume                     2140.7(2)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor, 1997)'
_computing_data_collection       'Collect (Nonius, 1998)'
_computing_data_reduction
;
 HKL Denzo and Scalepack (Otwinowski & Minor, 1997)
;
_computing_publication_material  SHELXL-97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SIR-92 (Altomare et al., 1994)'
_diffrn_ambient_temperature      180(2)
_diffrn_measured_fraction_theta_full 0.933
_diffrn_measured_fraction_theta_max 0.933
_diffrn_measurement_device_type  'Nonius Kappa CCD'
_diffrn_measurement_method       'Thin slice \w and \f scans'
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0822
_diffrn_reflns_av_sigmaI/netI    0.0886
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            11209
_diffrn_reflns_theta_full        22.38
_diffrn_reflns_theta_max         22.38
_diffrn_reflns_theta_min         3.53
_exptl_absorpt_coefficient_mu    0.093
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.740
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SORTAV (Blessing, 1995)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.314
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             896
_exptl_crystal_size_max          0.46
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.890
_refine_diff_density_min         -0.438
_refine_diff_density_rms         0.137
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.357
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     543
_refine_ls_number_reflns         5163
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.357
_refine_ls_R_factor_all          0.1682
_refine_ls_R_factor_gt           0.1329
_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^)+(0.2000P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.3294
_refine_ls_wR_factor_ref         0.3598
_reflns_number_gt                3560
_reflns_number_total             5163
_reflns_threshold_expression     I>2\s(I)
_publcif_datablock.id            {8840dcb6-a612-4079-b351-7faf36a1d6e9}
_cod_data_source_file            bi5010sup1.cif
_cod_data_source_block           Toluene_Monosolvate
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               2105785
_cod_database_fobs_code          2105785