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_4502332
_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, C8 H8 O3'
_chemical_formula_sum            'C17 H15 Cl2 N5 O3'
_chemical_formula_weight         408.24
_chemical_name_common            2
_chemical_name_systematic
; 
 Lamotrigine methylparaben form II cocrystal 
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                107.05(3)
_cell_angle_beta                 102.10(3)
_cell_angle_gamma                112.50(3)
_cell_formula_units_Z            2
_cell_length_a                   8.8957(18)
_cell_length_b                   11.409(2)
_cell_length_c                   12.040(2)
_cell_measurement_temperature    100(2)
_cell_volume                     1005.1(6)
_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 0.960
_diffrn_measured_fraction_theta_max 0.960
_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    0.0676
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            4879
_diffrn_reflns_theta_full        24.87
_diffrn_reflns_theta_max         24.87
_diffrn_reflns_theta_min         2.12
_exptl_absorpt_coefficient_mu    0.350
_exptl_absorpt_correction_T_max  0.9659
_exptl_absorpt_correction_T_min  0.9659
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS; (Sheldrick, 2003)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.349
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             420
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.192
_refine_diff_density_min         -0.276
_refine_diff_density_rms         0.052
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.070
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     337
_refine_ls_number_reflns         3370
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      1.070
_refine_ls_R_factor_all          0.0929
_refine_ls_R_factor_gt           0.0642
_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^)+(0.0484P)^2^+0.8794P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1380
_refine_ls_wR_factor_ref         0.1542
_reflns_number_gt                2420
_reflns_number_total             3370
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg901010v_si_004.cif
_cod_data_source_block           2_mp2_mc361
_cod_original_cell_volume        1005.0(4)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4502332