Halogen Trimer-Mediated Hexagonal Host Framework of 2,4,6-Tris(4-halophenoxy)-1,3,5-triazine. Supramolecular Isomerism from Hexagonal Channel (X = Cl, Br) to Cage Structure (X = I)
Saha, Binoy K.; Jetti, Ram K. R.; Reddy, L. Sreenivas; Aitipamula, Srinivasulu; Nangia, Ashwini; Crystal Growth & Design 5 (2005) 887–; doi:10.1021/cg049691r

data_4504957
_publ_section_title
;
 Halogen Trimer-Mediated Hexagonal Host Framework of
 2,4,6-Tris(4-halophenoxy)-1,3,5-triazine. Supramolecular Isomerism from
 Hexagonal Channel (X = Cl, Br) to Cage Structure (X = I)
;
_journal_issue                   3
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              887
_journal_paper_doi               10.1021/cg049691r
_journal_volume                  5
_journal_year                    2005
_chemical_formula_moiety         '2 (C21 H12 I3 N3 O3), C6 Cl6'
_chemical_formula_sum            'C48 H24 Cl6 I6 N6 O6'
_chemical_formula_weight         1754.83
_chemical_name_common
'2,4,6-tris(4-iodophenoxy)-1,3,5-triazine, hexachlorobenzene'
_chemical_name_systematic
; 
 2,4,6-tris(4-iodophenoxy)-1,3,5-triazine, hexachlorobenzene  
;
_space_group_IT_number           148
_symmetry_cell_setting           hexagonal
_symmetry_space_group_name_Hall  '-R 3'
_symmetry_space_group_name_H-M   'R -3 :H'
_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            3
_cell_length_a                   15.686(4)
_cell_length_b                   15.686(4)
_cell_length_c                   18.583(7)
_cell_measurement_reflns_used    500
_cell_measurement_temperature    223(2)
_cell_measurement_theta_max      28.29
_cell_measurement_theta_min      2.59
_cell_volume                     3960(2)
_computing_cell_refinement
;
BRUKER AXS SAINT program Vers.6.01
;
_computing_data_collection       'BRUKER AXS SMART Vers. 5.054 1997/98'
_computing_data_reduction
;
BRUKER AXS SAINT program Vers.6.01
;
_computing_molecular_graphics
;
BRUKER AXS SHELXTL Vers.6.12, DOS/WIN95/NT/2000/ME
;
_computing_publication_material
;
BRUKER AXS SHELXTL Vers.6.12, DOS/WIN95/NT/2000/ME
;
_computing_structure_refinement
;
BRUKER AXS SHELXTL Vers.6.12, DOS/WIN95/NT/2000/ME
;
_computing_structure_solution
;
BRUKER AXS SHELXTL Vers.6.12, DOS/WIN95/NT/2000/ME
;
_diffrn_ambient_temperature      223(2)
_diffrn_detector_area_resol_mean 8.192
_diffrn_measured_fraction_theta_full 0.965
_diffrn_measured_fraction_theta_max 0.965
_diffrn_measurement_device_type  'Siemens SMART CCD area detector system'
_diffrn_measurement_method
;
 Full sphere data collection 
 in omega at 0.3 deg scan width, 
 two runs with 720 frames, phi =  0, 270(deg) 
 two runs with 436 frames, phi = 88, 180 deg) 
;
_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  0.0241
_diffrn_reflns_av_sigmaI/netI    0.0360
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            5354
_diffrn_reflns_theta_full        28.39
_diffrn_reflns_theta_max         28.39
_diffrn_reflns_theta_min         1.86
_exptl_absorpt_coefficient_mu    3.888
_exptl_absorpt_correction_T_max  0.740
_exptl_absorpt_correction_T_min  0.470
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details
; 
 Siemens SADABS program multi-scan V2.03
 R.H. Blessing, Acta Cryst. (1995) A51 33-38 
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    2.208
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2466
_exptl_crystal_size_max          0.27
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.803
_refine_diff_density_min         -0.702
_refine_diff_density_rms         0.098
_refine_ls_extinction_coef       0.00098(8)
_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   1.064
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     110
_refine_ls_number_reflns         2142
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.064
_refine_ls_R_factor_all          0.0347
_refine_ls_R_factor_gt           0.0307
_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^)+(0.0360P)^2^+19.9410P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0828
_refine_ls_wR_factor_ref         0.0847
_reflns_number_gt                1947
_reflns_number_total             2142
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg049691rsi20040907_112553.cif
_cod_data_source_block           ihbdjum
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Hexagonal' changed to 'hexagonal'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      'R -3'
_cod_database_code               4504957