Ionic co-crystals of racetams: solid-state properties enhancement of neutral active pharmaceutical ingredients via addition of Mg2+ and Ca2+ chlorides
Grepioni, Fabrizia; Wouters, Johan; Braga, Dario; Nanna, Saverio; Fours, Baptiste; Coquerel, Gérard; Longfils, Geraldine; Rome, Sandrine; Aerts, Luc; Quéré, Luc; CrystEngComm 16 (2014) 5887–; doi:10.1039/c4ce00409d

data_7215963
_publ_section_title
;
 Ionic co-crystals of racetams: solid-state properties enhancement of
 neutral active pharmaceutical ingredients via addition of Mg2+ and Ca2+
 chlorides
;
_journal_issue                   26
_journal_name_full               CrystEngComm
_journal_page_first              5887
_journal_paper_doi               10.1039/c4ce00409d
_journal_volume                  16
_journal_year                    2014
_chemical_formula_moiety         'C10 H18 Ca Cl2 F2 N2 O4'
_chemical_formula_sum            'C10 H18 Ca Cl2 F2 N2 O4'
_chemical_formula_weight         379.24
_chemical_name_common            co-crystals
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method
;
CrysAlisPro, Agilent Technologies,
Version 1.171.36.21 (release 14-08-2012 CrysAlis171 .NET)
(compiled Sep 14 2012,17:21:16)
;
_cell_angle_alpha                90.00
_cell_angle_beta                 99.350(12)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   5.9482(8)
_cell_length_b                   9.0116(8)
_cell_length_c                   17.114(2)
_cell_measurement_reflns_used    3193
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      28.9784
_cell_measurement_theta_min      3.2997
_cell_volume                     905.17(18)
_computing_cell_refinement
;
CrysAlisPro, Agilent Technologies,
Version 1.171.36.21 (release 14-08-2012 CrysAlis171 .NET)
(compiled Sep 14 2012,17:21:16)
;
_computing_data_collection
;
CrysAlisPro, Agilent Technologies,
Version 1.171.36.21 (release 14-08-2012 CrysAlis171 .NET)
(compiled Sep 14 2012,17:21:16)
;
_computing_data_reduction
;
CrysAlisPro, Agilent Technologies,
Version 1.171.36.21 (release 14-08-2012 CrysAlis171 .NET)
(compiled Sep 14 2012,17:21:16)
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 16.1340
_diffrn_measured_fraction_theta_full 0.9980
_diffrn_measured_fraction_theta_max 0.9798
_diffrn_measurement_device_type  'Xcalibur, Sapphire3'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Enhance (Mo) X-ray Source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0621
_diffrn_reflns_av_sigmaI/netI    0.0783
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            11705
_diffrn_reflns_theta_full        26.3154
_diffrn_reflns_theta_max         28.9784
_diffrn_reflns_theta_min         3.2997
_exptl_absorpt_coefficient_mu    0.673
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.92616
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Agilent Technologies,
Version 1.171.36.21 (release 14-08-2012 CrysAlis171 .NET)
(compiled Sep 14 2012,17:21:16)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.391
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             392
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.11
_refine_diff_density_max         0.781
_refine_diff_density_min         -0.347
_refine_diff_density_rms         0.092
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.00
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.124
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     193
_refine_ls_number_reflns         4223
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.124
_refine_ls_R_factor_all          0.1012
_refine_ls_R_factor_gt           0.0795
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0811P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1603
_refine_ls_wR_factor_ref         0.1704
_reflns_number_gt                3369
_reflns_number_total             4223
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4ce00409d2.cif
_cod_data_source_block           SEL-CaCl2-2H2O
_cod_depositor_comments
'Adding full bibliography for 7215960--7215963.cif.'
_cod_original_cell_volume        905.18(19)
_cod_original_sg_symbol_H-M      P21
_cod_database_code               7215963