Alternative solid-state forms of a potent antimalarial aminopyridine: X-ray crystallographic, thermal and solubility aspects
Cruickshank, Dyanne L.; Younis, Yassir; Njuguna, Nicholas M.; Ongarora, Dennis S. B.; Chibale, Kelly; Caira, Mino R.; CrystEngComm 16 (2014) 5781–; doi:10.1039/c3ce41798k

data_7216544
_publ_section_title
;
 Alternative solid-state forms of a potent antimalarial aminopyridine:
 X-ray crystallographic, thermal and solubility aspects
;
_journal_issue                   26
_journal_name_full               CrystEngComm
_journal_page_first              5781
_journal_paper_doi               10.1039/c3ce41798k
_journal_volume                  16
_journal_year                    2014
_chemical_formula_moiety         'C18 H18 N3 O3 S1, C8 H13 O4'
_chemical_formula_sum            'C26 H31 N3 O7 S'
_chemical_formula_weight         529.60
_chemical_melting_point          419
_chemical_name_systematic
; 
 3-6(-Methoxypyridin-3-yl)-5-(4-methylsulfonylphenyl)-
pyridine-2-amine. octanedioate salt
;
_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                75.627(2)
_cell_angle_beta                 88.814(2)
_cell_angle_gamma                89.651(2)
_cell_formula_units_Z            2
_cell_length_a                   5.4192(7)
_cell_length_b                   12.1987(15)
_cell_length_c                   19.705(3)
_cell_measurement_reflns_used    6897
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      29.34
_cell_measurement_theta_min      1.72
_cell_volume                     1261.6(3)
_computing_cell_refinement       'SAINT (Bruker, 2001)'
_computing_data_collection       'Bruker Apex2'
_computing_data_reduction        'Bruker SAINT, SADABS and XPREP'
_computing_molecular_graphics
;
Mercury (Macrae at al., 2006) and POV-RAY (Cason, 2003)
;
_computing_publication_material  'PLATON (Spek, 2003)'
_computing_structure_refinement  'SHELXH-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Bruker Kappa Apex II Duo 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  0.0509
_diffrn_reflns_av_sigmaI/netI    0.0654
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            26058
_diffrn_reflns_theta_full        29.34
_diffrn_reflns_theta_max         29.34
_diffrn_reflns_theta_min         1.72
_exptl_absorpt_coefficient_mu    0.180
_exptl_absorpt_correction_T_max  0.9707
_exptl_absorpt_correction_T_min  0.9585
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2008)'
_exptl_crystal_colour            'translucent yellow'
_exptl_crystal_density_diffrn    1.394
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       rods
_exptl_crystal_F_000             560
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.17
_refine_diff_density_max         0.272
_refine_diff_density_min         -0.357
_refine_diff_density_rms         0.048
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.905
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     337
_refine_ls_number_reflns         6897
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.905
_refine_ls_R_factor_all          0.0696
_refine_ls_R_factor_gt           0.0409
_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^)+(0.0439P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0887
_refine_ls_wR_factor_ref         0.0962
_reflns_number_gt                4483
_reflns_number_total             6897
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3ce41798k.txt
_cod_data_source_block           c:\dyanne~1\2013\007\s3sube~1\007suba
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 

 Adding full bibliography for 7216538--7216544.cif.
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7216544