Controlling molecular tautomerism through supramolecular selectivity
Kanishka Epa; Christer B. Aakeroy; John Desper; Sundeep Rayat; Kusum Lata Chandra; Aurora J. Cruz-Cabeza; Chem.Commun. 49 (2013) 7929–; doi:10.1039/c3cc43935f

data_7109692
_publ_section_title
;
 Controlling molecular tautomerism through supramolecular selectivity
;
_journal_name_full               Chem.Commun.
_journal_page_first              7929
_journal_paper_doi               10.1039/c3cc43935f
_journal_volume                  49
_journal_year                    2013
_chemical_formula_moiety
;
(C6 H5 N3) (C6 F4 I2)
;
_chemical_formula_sum            'C12 H5 F4 I2 N3'
_chemical_formula_weight         520.99
_chemical_name_systematic
;
KEDPX2 3H-imidazo[4,5-b]pyridine, 1,2-diiodotetrafluorobenzene
;
_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                 110.886(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.5283(11)
_cell_length_b                   14.7657(14)
_cell_length_c                   8.7953(8)
_cell_measurement_reflns_used    9985
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      33.12
_cell_measurement_theta_min      2.53
_cell_volume                     1398.8(2)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      120(2)
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.940
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w 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  0.0301
_diffrn_reflns_av_sigmaI/netI    0.0303
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            19188
_diffrn_reflns_theta_full        30.00
_diffrn_reflns_theta_max         33.14
_diffrn_reflns_theta_min         1.89
_exptl_absorpt_coefficient_mu    4.537
_exptl_absorpt_correction_T_max  0.7725
_exptl_absorpt_correction_T_min  0.4639
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    2.474
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             960
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.06
_refine_diff_density_max         2.084
_refine_diff_density_min         -1.579
_refine_diff_density_rms         0.176
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.092
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     190
_refine_ls_number_reflns         5009
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.092
_refine_ls_R_factor_all          0.0443
_refine_ls_R_factor_gt           0.0331
_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^)+(0.0300P)^2^+4.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0729
_refine_ls_wR_factor_ref         0.0789
_reflns_number_gt                4227
_reflns_number_total             5009
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3cc43935f.txt
_cod_data_source_block           ke1220m
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7109692