Novel pharmaceutical compositions through co-crystallization of racetams and Li+ salts
Wouters, Johan; Grepioni, Fabrizia; Braga, Dario; Kaminski, Rafal M.; Rome, Sandrine; Aerts, Luc; Quéré, Luc; CrystEngComm 15 (2013) 8898–; doi:10.1039/c3ce41539b

data_7211220
_publ_section_title
;
 Novel pharmaceutical compositions through co-crystallization of racetams
 and Li+ salts
;
_journal_issue                   44
_journal_name_full               CrystEngComm
_journal_page_first              8898
_journal_paper_doi               10.1039/c3ce41539b
_journal_volume                  15
_journal_year                    2013
_chemical_absolute_configuration rm
_chemical_formula_moiety         'C20 H28 Br F4 Li N4 O4'
_chemical_formula_sum            'C20 H28 Br F4 Li N4 O4'
_chemical_formula_weight         551.30
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.1840(10)
_cell_length_b                   24.895(3)
_cell_length_c                   10.777(2)
_cell_measurement_reflns_used    21
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      16.0
_cell_measurement_theta_min      9.0
_cell_volume                     2732.3(7)
_computing_cell_refinement       NoniusCAD4/MACH3(2000)
_computing_data_collection       NoniusCAD4/MACH3(2000)
_computing_data_reduction        'Platon2001 (Spek, 2001)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    SIR92
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  nonius-cad4
_diffrn_measurement_method       \q/q2\q
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0000
_diffrn_reflns_av_sigmaI/netI    0.0409
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       29
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            2758
_diffrn_reflns_theta_full        66.59
_diffrn_reflns_theta_max         66.59
_diffrn_reflns_theta_min         3.55
_diffrn_standards_decay_%        15.0
_diffrn_standards_interval_count 200
_diffrn_standards_interval_time  60
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    2.565
_exptl_absorpt_correction_T_max  0.8824
_exptl_absorpt_correction_T_min  0.5442
_exptl_absorpt_correction_type   analytical
_exptl_absorpt_process_details
'de Meulenaer and Tompa, Acta Cryst. 19, 1014-1018(1965)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.345
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plates
_exptl_crystal_F_000             1128
_exptl_crystal_size_max          0.27
_exptl_crystal_size_mid          0.21
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.198
_refine_diff_density_min         -0.338
_refine_diff_density_rms         0.050
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.10(4)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.013
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     309
_refine_ls_number_reflns         2758
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.013
_refine_ls_R_factor_all          0.1071
_refine_ls_R_factor_gt           0.0486
_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^)+(0.0711P)^2^+0.9531P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1171
_refine_ls_wR_factor_ref         0.1440
_reflns_number_gt                1587
_reflns_number_total             2758
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3ce41539b.txt
_cod_data_source_block           sel2libr
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.2 from
2011-04-26.

'_exptl_absorpt_correction_type' value 'Analytical'
changed to 'analytical' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_database_code               7211220