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_4502338
_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_moiety         'C9 H7 Cl2 N5, C2 H8 O2'
_chemical_formula_sum            'C11 H15 Cl2 N5 O2'
_chemical_formula_weight         320.18
_chemical_name_common            9
_chemical_name_systematic
; 
 Lamotrigine dimethanol solvate
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 97.820(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   19.326(4)
_cell_length_b                   17.584(3)
_cell_length_c                   8.2698(15)
_cell_measurement_temperature    100(2)
_cell_volume                     2784.2(9)
_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 0.986
_diffrn_measured_fraction_theta_max 0.986
_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           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0276
_diffrn_reflns_av_sigmaI/netI    0.0371
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            5746
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.13
_exptl_absorpt_coefficient_mu    0.475
_exptl_absorpt_correction_T_max  0.9126
_exptl_absorpt_correction_T_min  0.8729
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS; (Sheldrick, 2003)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.528
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1328
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.313
_refine_diff_density_min         -0.250
_refine_diff_density_rms         0.057
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.054
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     185
_refine_ls_number_reflns         2421
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.054
_refine_ls_R_factor_all          0.0401
_refine_ls_R_factor_gt           0.0341
_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^)+(0.0532P)^2^+1.2724P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0889
_refine_ls_wR_factor_ref         0.0924
_reflns_number_gt                2127
_reflns_number_total             2421
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg901010v_si_004.cif
_cod_data_source_block           9_2MeOH_mc325
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               4502338