Strategic synthon approach in obtaining cocrystals and cocrystal polymorphs of a high-Z′ system deferiprone – an anti-thalassemia drug
Rajendrakumar, Satyasree; Surampudi Venkata Sai Durga, Anuja; Balasubramanian, Sridhar; Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials 77 (2021) 946–964; doi:10.1107/S205252062100980X

data_2022897
_publ_section_title
;
 Strategic synthon approach in obtaining cocrystals and cocrystal
 polymorphs of a high-Z&#x2032; system deferiprone -- an anti-thalassemia
 drug
;
_journal_coeditor_code           LO5093
_journal_issue                   6
_journal_name_full
'Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials'
_journal_page_first              946
_journal_page_last               964
_journal_paper_doi               10.1107/S205252062100980X
_journal_volume                  77
_journal_year                    2021
_chemical_formula_moiety         '2(C7 H9 N O2), C6 H6 O3, 2(H2 O)'
_chemical_formula_sum            'C20 H28 N2 O9'
_chemical_formula_weight         440.44
_chemical_name_common            'Deferiprone Phloroglucinol hydrate (2:1:2)'
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2018/3
_cell_angle_alpha                91.088(8)
_cell_angle_beta                 93.874(7)
_cell_angle_gamma                90.209(7)
_cell_formula_units_Z            2
_cell_length_a                   7.9892(19)
_cell_length_b                   10.197(3)
_cell_length_c                   12.876(4)
_cell_measurement_reflns_used    9849
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      30.54
_cell_measurement_theta_min      2.53
_cell_volume                     1046.4(5)
_computing_cell_refinement       '<i>SAINT</i> (Bruker, 2016)'
_computing_data_collection       '<i>APEX3</i> (Bruker, 2016)'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'DIAMOND (Brandenburg & Putz, 2005)'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    '<i>SHELXT</i> (Sheldrick, 2015)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Bruker D8 QUEST PHOTON-100'
_diffrn_measurement_method       '\w and \f'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0567
_diffrn_reflns_av_unetI/netI     0.0477
_diffrn_reflns_Laue_measured_fraction_full 0.995
_diffrn_reflns_Laue_measured_fraction_max 0.995
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            20542
_diffrn_reflns_point_group_measured_fraction_full 0.995
_diffrn_reflns_point_group_measured_fraction_max 0.995
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.997
_diffrn_reflns_theta_min         2.527
_diffrn_source                   microfocus
_exptl_absorpt_coefficient_mu    0.111
_exptl_absorpt_correction_T_max  0.7461
_exptl_absorpt_correction_T_min  0.5383
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS, Bruker, 2016'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.398
_exptl_crystal_description       block
_exptl_crystal_F_000             468
_exptl_crystal_size_max          0.320
_exptl_crystal_size_mid          0.260
_exptl_crystal_size_min          0.170
_refine_diff_density_max         0.475
_refine_diff_density_min         -0.559
_refine_diff_density_rms         0.100
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.246
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     300
_refine_ls_number_reflns         4542
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.246
_refine_ls_R_factor_all          0.0860
_refine_ls_R_factor_gt           0.0841
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+4.4439P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2036
_refine_ls_wR_factor_ref         0.2045
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4349
_reflns_number_total             4542
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            lo5093sup1.cif
_cod_data_source_block           KA1017_0m_def-phghyd_2_1_2
_cod_database_code               2022897
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.965
_shelx_estimated_absorpt_t_max   0.981
_shelx_res_checksum              67527
_shelx_hkl_checksum              17447
_cod_database_fobs_code 2022897