Cocrystals of the antimalarial drug 11-azaartemisinin with three alkenoic acids of 1:1 or 2:1 stoichiometry
Nisar, Madiha; Wong, Lawrence W.-Y.; Sung, Herman H.-Y.; Haynes, Richard K.; Williams, Ian D.; Acta Crystallographica Section C 74 (2018) –; doi:10.1107/S2053229618006320

data_2021135
_publ_section_title
;
 Cocrystals of the antimalarial drug 11-azaartemisinin with three alkenoic
 acids of 1:1 or 2:1 stoichiometry
;
_journal_coeditor_code           LF3073
_journal_issue                   6
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first
;
;
_journal_paper_doi               10.1107/S2053229618006320
_journal_volume                  74
_journal_year                    2018
_chemical_formula_iupac          '2C15 H23 N O4, C4 H4 O4'
_chemical_formula_moiety         '2(C15 H23 N O4), C4 H4 O4'
_chemical_formula_sum            'C34 H50 N2 O12'
_chemical_formula_weight         678.76
_chemical_name_common
;
11-Azaartemisinin--maleic acid (2/1)
;
_chemical_name_systematic
'1,5,9-Trimethyl-14,15,16-trioxa-11-azatetracyclo[10.3.1.0^4,13^.0^8,13^]hexadecan-10-one--<i>cis</i>-butenedioic acid (2/1)'
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     direct
_audit_creation_method
;
Olex2 1.2-beta
(compiled 2018.02.02 svn.r3481 for OlexSys, GUI svn.r5470)
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.78850(10)
_cell_length_b                   9.99650(10)
_cell_length_c                   33.7661(4)
_cell_measurement_reflns_used    7193
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      75.3680
_cell_measurement_theta_min      4.6080
_cell_volume                     3304.04(6)
_computing_cell_refinement
;
CrysAlis PRO (Rigaku OD, 2015)
;
_computing_data_collection
;
CrysAlis PRO (Rigaku OD, 2015)
;
_computing_data_reduction
;
CrysAlis PRO (Rigaku OD, 2015)
;
_computing_molecular_graphics
;
OLEX2 (Dolomanov <i>et al.</i>,  2009)
;
_computing_publication_material
;
OLEX2 (Dolomanov <i>et al.</i>,  2009)
;
_computing_structure_refinement
;
SHELXL2014 (Sheldrick, 2015)
;
_computing_structure_solution
;
SHELXS97 (Sheldrick, 2008)
;
_diffrn_ambient_temperature      100.15
_diffrn_detector_area_resol_mean 10.3577
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type
'Rigaku SuperNova Dual Source diffractometer with an Atlas detector'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0210
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -40
_diffrn_reflns_number            9569
_diffrn_reflns_theta_full        66.500
_diffrn_reflns_theta_max         67.487
_diffrn_reflns_theta_min         4.613
_exptl_absorpt_coefficient_mu    0.858
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.97257
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
(CrysAlis PRO; Rigaku OD, 2015)
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.365
_exptl_crystal_description       block
_exptl_crystal_F_000             1456
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.206
_refine_diff_density_min         -0.181
_refine_ls_abs_structure_details
;
Flack <i>x</i> determined using 2414 quotients [(I+)-(I-)]/[(I+)+(I-)]
(Parsons <i>et al.</i>,  2013)
;
_refine_ls_abs_structure_Flack   0.02(7)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.016
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     455
_refine_ls_number_reflns         5886
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.016
_refine_ls_R_factor_all          0.0307
_refine_ls_R_factor_gt           0.0296
_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^)+(0.0400P)^2^+0.6791P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0743
_refine_ls_wR_factor_ref         0.0749
_reflns_number_gt                5726
_reflns_number_total             5886
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            lf3073sup1.cif
_cod_data_source_block           madiha55cult
_cod_database_code               2021135
_cod_database_fobs_code          2021135
_shelx_estimated_absorpt_t_min   0.847
_shelx_estimated_absorpt_t_max   0.919
_shelx_hkl_checksum              88672
_shelx_res_checksum              3160
_shelxl_version_number           2.014