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_4029794
_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         '4(C5 H5 I N), C2 H6 O, 4(Cl)'
_chemical_formula_sum            'C5.5 H6.5 Cl I N O0.25'
_chemical_formula_weight         252.97
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_Int_Tables_number      2
_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             2009-08-25T16:17:53-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                80.0270(10)
_cell_angle_beta                 78.2170(10)
_cell_angle_gamma                76.3020(10)
_cell_formula_units_Z            8
_cell_length_a                   8.19130(10)
_cell_length_b                   11.4208(2)
_cell_length_c                   17.9429(3)
_cell_measurement_reflns_used    5406
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      28.283
_cell_measurement_theta_min      0.407
_cell_measurement_wavelength     0.71073
_cell_volume                     1582.66(4)
_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)'
_diffrn_ambient_temperature      123(2)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.982
_diffrn_measured_fraction_theta_max 0.933
_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      0.121803E-1
_diffrn_orient_matrix_UB_12      -0.146551E-1
_diffrn_orient_matrix_UB_13      0.553704E-1
_diffrn_orient_matrix_UB_21      0.126925
_diffrn_orient_matrix_UB_22      -0.190097E-1
_diffrn_orient_matrix_UB_23      -0.151263E-1
_diffrn_orient_matrix_UB_31      0.19285E-2
_diffrn_orient_matrix_UB_32      0.876834E-1
_diffrn_orient_matrix_UB_33      -0.18396E-2
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0292
_diffrn_reflns_av_unetI/netI     0.0362
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            19765
_diffrn_reflns_theta_full        25
_diffrn_reflns_theta_max         27.5
_diffrn_reflns_theta_min         1.17
_diffrn_source                   'Enraf Nonius FR590'
_exptl_absorpt_coefficient_mu    4.298
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.5641
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
        [c.f. r.h. blessing, acta cryst. (1995), a51, 33-38]
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    2.123
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             948
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.28
_exptl_crystal_size_min          0.20
_refine_diff_density_max         1.131
_refine_diff_density_min         -0.915
_refine_diff_density_rms         0.149
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.022
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     318
_refine_ls_number_reflns         6784
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.022
_refine_ls_R_factor_all          0.0442
_refine_ls_R_factor_gt           0.0326
_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^)+(0.0133P)^2^+4.8563P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0667
_refine_ls_wR_factor_ref         0.0722
_reflns_number_gt                5366
_reflns_number_total             6784
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            1860-5397-6-4-S2.cif
_cod_data_source_block           10
_cod_database_code               4029794