Interaction between amines and N-haloimides: a new motif for unprecedentedly short Br⋯N and I⋯N halogen bonds
Raatikainen, Kari; Rissanen, Kari; CrystEngComm 13 (2011) 6972–; doi:10.1039/c1ce05447c

data_7206786
_publ_section_title
;
 Interaction between amines and N-haloimides: a new motif for
 unprecedentedly short Br&#x22EF;N and I&#x22EF;N halogen bonds
;
_journal_issue                   23
_journal_name_full               CrystEngComm
_journal_page_first              6972
_journal_paper_doi               10.1039/c1ce05447c
_journal_volume                  13
_journal_year                    2011
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C6 H12 N2, 2(C4 H4 Br N O2), 2(C H Cl3)'
_chemical_formula_sum            'C16 H22 Br2 Cl6 N4 O4'
_chemical_formula_weight         706.9
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_symmetry_space_group_name_Hall  '-P 2yab'
_symmetry_space_group_name_H-M   'P 1 21/a 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             2011-01-27T16:22:29-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                90
_cell_angle_beta                 97.3440(10)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   18.0736(5)
_cell_length_b                   6.1490(2)
_cell_length_c                   23.5057(6)
_cell_measurement_reflns_used    5088
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      28.283
_cell_measurement_theta_min      0.407
_cell_measurement_wavelength     0.71073
_cell_volume                     2590.87(13)
_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    'SIR97 (Giacovazzo et al, 1997)'
_diffrn_ambient_temperature      123(2)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_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      0.382021E-1
_diffrn_orient_matrix_UB_12      0.327964E-1
_diffrn_orient_matrix_UB_13      -0.260372E-1
_diffrn_orient_matrix_UB_21      0.400507E-1
_diffrn_orient_matrix_UB_22      -0.571965E-1
_diffrn_orient_matrix_UB_23      0.294942E-1
_diffrn_orient_matrix_UB_31      -0.69813E-2
_diffrn_orient_matrix_UB_32      -0.148664
_diffrn_orient_matrix_UB_33      -0.170915E-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  0.0381
_diffrn_reflns_av_unetI/netI     0.0469
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            19738
_diffrn_reflns_theta_full        28.45
_diffrn_reflns_theta_max         28.45
_diffrn_reflns_theta_min         0.87
_diffrn_source                   'Enraf Nonius FR590'
_exptl_absorpt_coefficient_mu    3.779
_exptl_absorpt_correction_T_max  0.7457
_exptl_absorpt_correction_T_min  0.4936
_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    1.812
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1400
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.471
_refine_diff_density_min         -0.713
_refine_diff_density_rms         0.087
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.035
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     289
_refine_ls_number_reflns         6499
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.035
_refine_ls_R_factor_all          0.0494
_refine_ls_R_factor_gt           0.0338
_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^)+(0.0139P)^2^+3.2193P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0728
_refine_ls_wR_factor_ref         0.0787
_reflns_number_gt                5179
_reflns_number_total             6499
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            c1ce05447c.txt
_cod_data_source_block           DABCO-NBS
_cod_original_sg_symbol_H-M      'P 21/a'
_cod_database_code               7206786