Co-crystals of the antiretroviral nevirapine: crystal structures, thermal analysis and dissolution behaviour
Caira, Mino R.; Bourne, Susan A.; Samsodien, Halima; Engel, Emile; Liebenberg, Wilna; Stieger, Nicole; Aucamp, Marique; CrystEngComm 14 (2012) 2541–; doi:10.1039/c2ce06507j

data_7207609
_publ_section_title
;
 Co-crystals of the antiretroviral nevirapine: crystal structures, thermal
 analysis and dissolution behaviour
;
_journal_issue                   7
_journal_name_full               CrystEngComm
_journal_page_first              2541
_journal_paper_doi               10.1039/c2ce06507j
_journal_volume                  14
_journal_year                    2012
_chemical_formula_moiety         '2(C15 H14 N4 O), C7 H6 O3'
_chemical_formula_sum            'C37 H34 N8 O5'
_chemical_formula_weight         670.72
_chemical_melting_point          '203 degrees C melting onset by DSC'
_chemical_name_common            'nevirapine-salicylic acid 2:1 co-crystal'
_chemical_name_systematic
;
11-cyclopropyl-5,11-dihydro-4-methyl-6H-dipyrido[3,2-b:2',3'-e]diazepin-6-one
2-hydroxybenzoic acid 2:1 co-crystal
;
_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
_audit_creation_method           SHELXL-97
_cell_angle_alpha                113.374(2)
_cell_angle_beta                 99.133(2)
_cell_angle_gamma                107.324(2)
_cell_formula_units_Z            2
_cell_length_a                   11.1549(14)
_cell_length_b                   12.6194(15)
_cell_length_c                   13.4644(16)
_cell_measurement_reflns_used    7552
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      28.14
_cell_measurement_theta_min      2.91
_cell_volume                     1575.8(3)
_computing_cell_refinement       'DENZO-SMN (Otwinowski & Minor, 1997)'
_computing_data_collection       'COLLECT 2000'
_computing_data_reduction        'DENZO-SMN (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'X-Seed (Barbour, 2001)'
_computing_publication_material  'PLATON (Spek, 1990)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.979
_diffrn_measured_fraction_theta_max 0.979
_diffrn_measurement_device_type  'Bruker Kappa Duo Apex II diffractometer'
_diffrn_measurement_method       'phi- and omega scans of 0.5 deg'
_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  0.0296
_diffrn_reflns_av_sigmaI/netI    0.0301
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            23138
_diffrn_reflns_theta_full        28.14
_diffrn_reflns_theta_max         28.14
_diffrn_reflns_theta_min         2.91
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count n/a
_diffrn_standards_interval_time  n/a
_diffrn_standards_number         n/a
_exptl_absorpt_coefficient_mu    0.097
_exptl_absorpt_correction_T_max  0.9952
_exptl_absorpt_correction_T_min  0.9668
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'program SADABS (Sheldrick, 1996)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.414
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             704
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.05
_refine_diff_density_max         1.298
_refine_diff_density_min         -0.432
_refine_diff_density_rms         0.085
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.042
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     474
_refine_ls_number_reflns         7552
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.042
_refine_ls_R_factor_all          0.0899
_refine_ls_R_factor_gt           0.0664
_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^)+(0.1216P)^2^+0.7467P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1851
_refine_ls_wR_factor_ref         0.2077
_reflns_number_gt                5331
_reflns_number_total             7552
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2ce06507j.txt
_cod_data_source_block           c:\pampoen2
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
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_cod_database_code               7207609