Recognition of Anions and Neutral Guests by Dicationic Pyridine-2,6-dicarboxamide Receptors
Alejandro Dorazco-González; Herbert Höpfl; Felipe Medrano; Anatoly K. Yatsimirsky; Journal of Organic Chemistry 75 (2010) 2259–2273; doi:10.1021/jo100037m

data_4025322
_publ_section_title
;
 Recognition of Anions and Neutral Guests by Dicationic
 Pyridine-2,6-dicarboxamide Receptors
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              2259
_journal_page_last               2273
_journal_paper_doi               10.1021/jo100037m
_journal_volume                  75
_journal_year                    2010
_chemical_formula_moiety         'C19 H19 N5 O2, 2(C F3 O3 S)'
_chemical_formula_sum            'C21 H19 F6 N5 O8 S2'
_chemical_formula_weight         647.53
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 106.889(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   28.202(4)
_cell_length_b                   8.1643(12)
_cell_length_c                   22.883(3)
_cell_measurement_reflns_used    5717
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      28.03
_cell_measurement_theta_min      2.20
_cell_volume                     5041.6(12)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and 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  0.0469
_diffrn_reflns_av_sigmaI/netI    0.0343
_diffrn_reflns_limit_h_max       33
_diffrn_reflns_limit_h_min       -33
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            47350
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.51
_exptl_absorpt_coefficient_mu    0.315
_exptl_absorpt_correction_T_max  0.9060
_exptl_absorpt_correction_T_min  0.8610
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.706
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'rectangular prism'
_exptl_crystal_F_000             2640
_exptl_crystal_size_max          0.49
_exptl_crystal_size_mid          0.34
_exptl_crystal_size_min          0.32
_refine_diff_density_max         0.566
_refine_diff_density_min         -0.328
_refine_diff_density_rms         0.071
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.166
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     773
_refine_ls_number_reflns         8890
_refine_ls_number_restraints     4
_refine_ls_restrained_S_all      1.166
_refine_ls_R_factor_all          0.0628
_refine_ls_R_factor_gt           0.0550
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0432P)^2^+7.6755P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1167
_refine_ls_wR_factor_ref         0.1225
_reflns_number_gt                8043
_reflns_number_total             8890
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo100037m_si_004.cif
_cod_data_source_block           glinicx
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to the built-in table from CIF Core dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 
;
_cod_original_cell_volume        5041.6(13)
_cod_database_code               4025322