Polar host–guest assembly mediated by halogen‥π interaction: inclusion complexes of 2,4,6-tris(4-halophenoxy)-1,3,5-triazine (halo = chloro, bromo) with trihalobenzene (halo = bromo, iodo)
Jetti, Ram K. R.; Nangia, Ashwini; Xue, Feng; Mak, Thomas C. W.; Chemical Communications  (2001) 919–; doi:10.1039/b102150h

data_7114839
_publ_section_title
;
 Polar host--guest assembly mediated by halogen&#x2025;\p interaction:
 inclusion complexes of 2,4,6-tris(4-halophenoxy)-1,3,5-triazine (halo =
 chloro, bromo) with trihalobenzene (halo = bromo, iodo)
;
_journal_issue                   10
_journal_name_full               'Chemical Communications'
_journal_page_first              919
_journal_paper_doi               10.1039/b102150h
_journal_year                    2001
_chemical_formula_moiety         '(C21 H12 N3 O3 Br3).(C6 H3 Br3)'
_chemical_formula_sum            'C27 H15 Br6 N3 O3'
_chemical_formula_weight         908.88
_chemical_melting_point          508.1(10)
_chemical_name_common
;
2,4,6-tris-(4-bromophenoxy)-1,3,5-triazine, tribromobenzene clathrate
;
_space_group_IT_number           173
_symmetry_cell_setting           hexagonal
_symmetry_space_group_name_Hall  'P 6c'
_symmetry_space_group_name_H-M   'P 63'
_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                 90.00
_cell_angle_gamma                120.00
_cell_formula_units_Z            2
_cell_length_a                   15.4420(13)
_cell_length_b                   15.4420(13)
_cell_length_c                   6.9909(7)
_cell_measurement_temperature    294(2)
_cell_volume                     1443.7(2)
_computing_cell_refinement       'BioteX 1.0 (MSC, 1995)'
_computing_data_collection       'BioteX 1.0 (MSC, 1995)'
_computing_data_reduction        'BioteX 1.0 (MSC, 1995)'
_computing_molecular_graphics    'XP in SHELXTL-PC (Siemens, 1990)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      294(2)
_diffrn_measured_fraction_theta_full 0.972
_diffrn_measured_fraction_theta_max 0.972
_diffrn_measurement_device_type  'Rigaku RAXIS IIc'
_diffrn_measurement_method       'taking xx oscillation frames'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source
;
Rigaku RU-200 rotating-anode generator powered at 50kV / 90mA
;
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1359
_diffrn_reflns_av_sigmaI/netI    0.1014
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            4453
_diffrn_reflns_theta_full        25.55
_diffrn_reflns_theta_max         25.55
_diffrn_reflns_theta_min         1.52
_exptl_absorpt_coefficient_mu    8.378
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'ABSCOR (Higashi, 1995)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    2.091
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             864
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.649
_refine_diff_density_min         -0.480
_refine_diff_density_rms         0.115
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.36(4)
_refine_ls_extinction_coef       0.022(3)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.105
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     120
_refine_ls_number_reflns         1715
_refine_ls_number_restraints     36
_refine_ls_restrained_S_all      1.097
_refine_ls_R_factor_all          0.0771
_refine_ls_R_factor_gt           0.0706
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0993P)^2^+0.0706P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1681
_refine_ls_wR_factor_ref         0.1732
_reflns_number_gt                1587
_reflns_number_total             1715
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b102150h.txt
_cod_data_source_block           BRPOT.TBB
_cod_depositor_comments
;
The following automatic conversions were performed:
'_atom_site_symetry_multiplicity' tag replaced with
'_atom_site_symmetry_multiplicity'.

Automatic conversion script
Id: cif_correct_tags 1440 2010-10-19 06:21:57Z saulius 

The following automatic conversions were performed:

'_chemical_melting_point' value '234-236 deg C' was changed to
'508.1(10)' - it was converted from degrees Celsius(C) to Kelvins(K),
the average value was taken and precision was
estimated.

'_symmetry_cell_setting' value 'Hexagonal' changed to
'hexagonal' according to
/usr/data/users/saulius/automatic-downloads/retrospective/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from
2011-04-26.

'_exptl_absorpt_correction_type' value 'Empirical'
changed to 'empirical' according to
/usr/data/users/saulius/automatic-downloads/retrospective/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 
;
_cod_original_sg_symbol_H-M      P6(3)
_cod_database_code               7114839