The subtle balance of weak supramolecular interactions: The hierarchy of halogen and hydrogen bonds in haloanilinium and halopyridinium salts.
Raatikainen, Kari; Cametti, Massimo; Rissanen, Kari; Beilstein journal of organic chemistry 6 (2010) 4–; doi:10.3762/bjoc.6.4

data_4029795
_publ_section_title
;
 The subtle balance of weak supramolecular interactions: The hierarchy of
 halogen and hydrogen bonds in haloanilinium and halopyridinium salts.
;
_journal_name_full               'Beilstein journal of organic chemistry'
_journal_page_first              4
_journal_paper_doi               10.3762/bjoc.6.4
_journal_volume                  6
_journal_year                    2010
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C8 H4 N O6, C5 H5 I N'
_chemical_formula_sum            'C13 H9 I N2 O6'
_chemical_formula_weight         416.12
_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_date             2009-05-27T16:30:53-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                87.9511(16)
_cell_angle_beta                 73.0323(19)
_cell_angle_gamma                62.9872(16)
_cell_formula_units_Z            2
_cell_length_a                   8.1247(2)
_cell_length_b                   8.4128(2)
_cell_length_c                   11.7526(3)
_cell_measurement_reflns_used    2657
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      26.733
_cell_measurement_theta_min      0.407
_cell_measurement_wavelength     0.71073
_cell_volume                     680.09(3)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Bruker AXS BV, 1997-2004)'
_computing_data_reduction
'HKL Denzo and Scalepack (Otwinowski & Minor 1997)'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1986)'
_diffrn_ambient_temperature      123(2)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.971
_diffrn_measured_fraction_theta_max 0.971
_diffrn_measurement_device       '95mm CCD camera on \k-goniostat'
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       'CCD rotation images, thick slices'
_diffrn_orient_matrix_type       'by Bruker AXS Collect from scalepack cell'
_diffrn_orient_matrix_UB_11      0.125264
_diffrn_orient_matrix_UB_12      -0.384292E-1
_diffrn_orient_matrix_UB_13      0.174013E-1
_diffrn_orient_matrix_UB_21      -0.733514E-1
_diffrn_orient_matrix_UB_22      0.479167E-1
_diffrn_orient_matrix_UB_23      0.860717E-1
_diffrn_orient_matrix_UB_31      0.6108E-2
_diffrn_orient_matrix_UB_32      -0.119421
_diffrn_orient_matrix_UB_33      0.174984E-1
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0308
_diffrn_reflns_av_unetI/netI     0.0346
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            7548
_diffrn_reflns_theta_full        25
_diffrn_reflns_theta_max         25
_diffrn_reflns_theta_min         2.74
_diffrn_source                   'Enraf Nonius FR590'
_exptl_absorpt_coefficient_mu    2.388
_exptl_absorpt_correction_T_max  0.6204
_exptl_absorpt_correction_T_min  0.5054
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(Blessing et al., 1995)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    2.032
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             404
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.593
_refine_diff_density_min         -0.406
_refine_diff_density_rms         0.087
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.071
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     207
_refine_ls_number_reflns         2322
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.071
_refine_ls_R_factor_all          0.025
_refine_ls_R_factor_gt           0.0228
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0000P)^2^+1.1926P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0496
_refine_ls_wR_factor_ref         0.0504
_reflns_number_gt                2198
_reflns_number_total             2322
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            1860-5397-6-4-S2.cif
_cod_data_source_block           13
_cod_database_code               4029795