Optimization of physicochemical properties of theophylline by forming cocrystals with amino acids
Li, Qi; Xie, Yifei; Wang, Zhipeng; Li, Shuang; Yang, Shiying; Yang, Dezhi; Zhang, Li; Du, Guanhua; Lu, Yang; RSC Advances 14 (2024) 40006–40017; doi:10.1039/D4RA06804A

data_7249708
_publ_section_title
;
 Optimization of physicochemical properties of theophylline by forming
 cocrystals with amino acids
;
_journal_issue                   54
_journal_name_full               'RSC Advances'
_journal_page_first              40006
_journal_page_last               40017
_journal_paper_doi               10.1039/D4RA06804A
_journal_volume                  14
_journal_year                    2024
_chemical_absolute_configuration rm
_chemical_formula_moiety         'C7 H8 N4 O2, C4 H9 N O2'
_chemical_formula_sum            'C11 H17 N5 O4'
_chemical_formula_weight         283.29
_space_group_crystal_system      monoclinic
_space_group_IT_number           9
_space_group_name_Hall           'I -2ya'
_space_group_name_H-M_alt        'I 1 a 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_date             2024-06-17
_audit_creation_method
;
Olex2 1.5
(compiled 2024.02.16 svn.r378c4104 for OlexSys, GUI svn.r6928)
;
_audit_update_record
;
2024-12-01 deposited with the CCDC.	2024-12-16 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 112.434(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.2517(2)
_cell_length_b                   21.6583(5)
_cell_length_c                   8.7412(3)
_cell_measurement_reflns_used    9844
_cell_measurement_temperature    301.09(10)
_cell_measurement_theta_max      74.7620
_cell_measurement_theta_min      4.0440
_cell_volume                     1268.99(7)
_computing_cell_refinement       'CrysAlisPro 1.171.42.59a (Rigaku OD, 2022)'
_computing_data_collection       'CrysAlisPro 1.171.42.59a (Rigaku OD, 2022)'
_computing_data_reduction        'CrysAlisPro 1.171.42.59a (Rigaku OD, 2022)'
_computing_molecular_graphics    'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2019/2 (Sheldrick, 2015)'
_computing_structure_solution    2018.3
_diffrn_ambient_environment      air
_diffrn_ambient_temperature      301.09(10)
_diffrn_detector                 'Hybrid Pixel Array Detector'
_diffrn_detector_area_resol_mean 10.0000
_diffrn_detector_type            HyPix
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.979
_diffrn_measurement_details
;
List of Runs (angles in degrees, time in seconds):

  # Type    Start    End  Width  t~exp~   \w     \q     \k     \f   Frames
  1  \w    -40.00  27.00   0.50    0.05    --  -46.40  38.00 -60.00  134
  2  \w    -23.00  29.00   0.50    0.05    --  -46.40  19.00 -30.00  104
  3  \w    -23.00  29.00   0.50    0.05    --  -46.40  19.00 -90.00  104
  4  \w    -23.00  29.00   0.50    0.05    --  -46.40  19.00-150.00  104
  5  \w    -68.00 -30.00   0.50    0.05    -- -103.00  61.00-150.00   76
  6  \w    -68.00 -30.00   0.50    0.05    -- -103.00  61.00 -90.00   76
  7  \w    -68.00 -30.00   0.50    0.05    -- -103.00  61.00 -60.00   76
  8  \w   -102.00 -30.00   0.50    0.05    -- -103.00  77.00 -90.00  144
  9  \w    -68.00 -30.00   0.50    0.05    -- -103.00  61.00  30.00   76
 10  \w   -102.00 -30.00   0.50    0.05    -- -103.00  77.00  60.00  144
 11  \w   -102.00 -30.00   0.50    0.05    -- -103.00  77.00 120.00  144
 12  \w    -73.00  26.00   0.50    0.05    --  -46.40  85.00 -31.00  198
 13  \w   -118.00 -31.00   0.50    0.05    --  -46.40 -57.00-150.00  174
 14  \w   -118.00 -24.00   0.50    0.05    --  -46.40 -77.00-180.00  188
 15  \w   -118.00 -31.00   0.50    0.05    --  -46.40 -57.00 -90.00  174
 16  \w   -118.00 -24.00   0.50    0.05    --  -46.40 -77.00   0.00  188
 17  \w   -118.00 -31.00   0.50    0.05    --  -46.40 -57.00  60.00  174
 18  \w   -129.00 -30.00   0.50    0.05    -- -103.00  85.00 -31.00  198
 19  \w   -174.00 -89.00   0.50    0.05    -- -103.00 -15.00  90.00  170
 20  \w   -174.00 -80.00   0.50    0.05    -- -103.00 -77.00  30.00  188
 21  \w   -174.00 -90.00   0.50    0.05    -- -103.00 -45.00  90.00  168
 22  \w   -174.00 -90.00   0.50    0.05    -- -103.00 -30.00 120.00  168
 23  \w   -174.00 -90.00   0.50    0.05    -- -103.00 -45.00 150.00  168
 24  \w   -174.00 -86.00   0.50    0.05    -- -103.00 -61.00 -60.00  176
 25  \w   -174.00 -90.00   0.50    0.05    -- -103.00 -45.00 -90.00  168
 26  \w   -174.00 -90.00   0.50    0.05    -- -103.00 -30.00-150.00  168
 27  \w   -174.00 -79.00   0.50    0.05    -- -103.00 -85.00-150.00  190
 28  \w   -118.00 -73.00   0.50    0.05    --  -46.40-125.00   0.00   90
 29  \w     32.00  74.00   0.50    0.05    --  104.54 -61.00 -30.00   84
 30  \w     32.00  74.00   0.50    0.05    --  104.54 -61.00   0.00   84
 31  \w     85.00 176.00   0.50    0.05    --  104.54  85.00 -31.00  182
 32  \w     24.00 119.00   0.50    0.05    --   46.40  77.00  90.00  190
 33  \w    -28.00  29.00   0.50    0.05    --   46.40 -19.00 -90.00  114
 34  \w    -25.00  73.00   0.50    0.05    --   46.40 -85.00-150.00  196
 35  \w     32.00 131.00   0.50    0.05    --  104.54 -85.00-150.00  198
 36  \w     32.00 105.00   0.50    0.05    --  104.54 -95.00-180.00  146
 37  \w     32.00 111.00   0.50    0.05    --  104.54-125.00   0.00  158
 38  \w     32.00 105.00   0.50    0.05    --  104.54 -95.00 150.00  146
;
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'XtaLAB Synergy R, DW system, HyPix'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_type
'CrysAlisPro convention (1999,Acta A55,543-557)'
_diffrn_orient_matrix_UB_11      0.1046257000
_diffrn_orient_matrix_UB_12      0.0006002000
_diffrn_orient_matrix_UB_13      0.1899916000
_diffrn_orient_matrix_UB_21      0.0949539000
_diffrn_orient_matrix_UB_22      0.0628792000
_diffrn_orient_matrix_UB_23      -0.0085896000
_diffrn_orient_matrix_UB_31      -0.1813210000
_diffrn_orient_matrix_UB_32      0.0332424000
_diffrn_orient_matrix_UB_33      0.0129550000
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0820
_diffrn_reflns_av_unetI/netI     0.0346
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.979
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            10579
_diffrn_reflns_point_group_measured_fraction_full 0.924
_diffrn_reflns_point_group_measured_fraction_max 0.882
_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         76.109
_diffrn_reflns_theta_min         4.082
_diffrn_source                   'Rotating-anode X-ray tube'
_diffrn_source_type              'Rigaku (Cu) X-ray Source'
_exptl_absorpt_coefficient_mu    0.971
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.49606
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.42.59a (Rigaku Oxford Diffraction, 2022)
Empirical absorption correction using spherical harmonics,
implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.483
_exptl_crystal_description       blocked
_exptl_crystal_F_000             600
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.17
_refine_diff_density_max         0.221
_refine_diff_density_min         -0.219
_refine_diff_density_rms         0.067
_refine_ls_abs_structure_details
;
 Flack x determined using 979 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.20(18)
_refine_ls_extinction_coef       0.0030(8)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2019/2 (Sheldrick 2019)'
_refine_ls_goodness_of_fit_ref   1.085
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     185
_refine_ls_number_reflns         2341
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.084
_refine_ls_R_factor_all          0.0423
_refine_ls_R_factor_gt           0.0416
_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^)+(0.0839P)^2^+0.0899P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1127
_refine_ls_wR_factor_ref         0.1139
_reflns_Friedel_coverage         0.792
_reflns_Friedel_fraction_full    0.847
_reflns_Friedel_fraction_max     0.783
_reflns_number_gt                2275
_reflns_number_total             2341
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d4ra06804a2.cif
_cod_data_source_block           samp7046a
_cod_database_code               7249708
_shelx_shelxl_version_number     2019/2
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups, All N(H) groups, All N(H,H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Secondary CH2 refined with riding coordinates:
 C1S(H1SD,H1SE), C2S(H2SA,H2SB), C3S(H3SA,H3SB)
2.b Aromatic/amide H refined with riding coordinates:
 N4(H4), C5(H5)
2.c Idealised Me refined as rotating group:
 C6(H6A,H6B,H6C), C7(H7A,H7B,H7C), N1S(H1SA,H1SB,H1SC)
;
_shelx_res_checksum              39415
_olex2_submission_special_instructions 'No special instructions were received'
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
;
_oxdiff_exptl_absorpt_empirical_full_max 5.298
_oxdiff_exptl_absorpt_empirical_full_min 0.141