Effects of Crystal Form on Solubility and Pharmacokinetics: A Crystal Engineering Case Study of Lamotrigine
Cheney, Miranda L.; Shan, Ning; Healey, Elisabeth R.; Hanna, Mazen; Wojtas, Lukasz; Zaworotko, Michael J.; Sava, Vasyl; Song, Shijie; Sanchez-Ramos, Juan R.; Crystal Growth & Design 10 (2010) 394–; doi:10.1021/cg901010v

data_4502336
_publ_section_title
;
 Effects of Crystal Form on Solubility and Pharmacokinetics: A Crystal
 Engineering Case Study of Lamotrigine
;
_journal_issue                   1
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              394
_journal_paper_doi               10.1021/cg901010v
_journal_volume                  10
_journal_year                    2010
_chemical_formula_sum            'C22 H20 Cl4 N10 O5'
_chemical_formula_weight         646.28
_chemical_name_common            7
_chemical_name_systematic
; 
 Lamotrigine malate
;
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 107.634(13)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   10.728(2)
_cell_length_b                   10.2003(19)
_cell_length_c                   12.721(2)
_cell_measurement_temperature    100(2)
_cell_volume                     1326.6(4)
_computing_cell_refinement       'SAINT (Bruker, 2002)'
_computing_data_collection       'SMART (Bruker, 2002)'
_computing_data_reduction        'SAINT (Bruker, 2002)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.951
_diffrn_measured_fraction_theta_max 0.951
_diffrn_measurement_device_type  'BRUKER SMART APEXII CCD'
_diffrn_measurement_method       'omega scans'
_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  0.0426
_diffrn_reflns_av_sigmaI/netI    0.0515
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            9647
_diffrn_reflns_theta_full        67.37
_diffrn_reflns_theta_max         67.37
_diffrn_reflns_theta_min         3.65
_exptl_absorpt_coefficient_mu    4.553
_exptl_absorpt_correction_T_max  0.8043
_exptl_absorpt_correction_T_min  0.6588
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS; (Sheldrick, 2003)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.618
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             660
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.654
_refine_diff_density_min         -0.314
_refine_diff_density_rms         0.080
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.02(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.097
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     371
_refine_ls_number_reflns         3848
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.097
_refine_ls_R_factor_all          0.0505
_refine_ls_R_factor_gt           0.0461
_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^)+(0.0737P)^2^+0.4107P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1271
_refine_ls_wR_factor_ref         0.1299
_reflns_number_gt                3499
_reflns_number_total             3848
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg901010v_si_004.cif
_cod_data_source_block           7_lact_1040d_0m
_cod_original_sg_symbol_H-M      P21
_cod_database_code               4502336