Selenacalix[3]triazines: Synthesis and Host-Guest Chemistry
Joice Thomas; Wim Van Rossom; Kristof Van Hecke; Luc Van Meervelt; Mario Smet; Wouter Maes; Wim Dehaen; Chem.Commun. 48 (2012) 43–; doi:10.1039/c1cc15473g

data_7107116
_publ_section_title
;
 Selenacalix[3]triazines: Synthesis and Host-Guest Chemistry
;
_journal_name_full               Chem.Commun.
_journal_page_first              43
_journal_paper_doi               10.1039/c1cc15473g
_journal_volume                  48
_journal_year                    2012
_chemical_formula_moiety         'C21 H30 Br Cu N12 Se3'
_chemical_formula_sum            'C21 H30 Br Cu N12 Se3'
_chemical_formula_weight         830.90
_chemical_name_systematic
;
?
;
_space_group_IT_number           167
_symmetry_cell_setting           rhombohedral
_symmetry_space_group_name_Hall  '-R 3 2"c'
_symmetry_space_group_name_H-M   'R -3 c :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            24
_cell_length_a                   16.8242(2)
_cell_length_b                   16.8242(2)
_cell_length_c                   72.520(2)
_cell_measurement_temperature    293(2)
_cell_volume                     17777.0(6)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_publication_material  Platon
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'SMART 6000'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  'crossed G\"obel mirrors'
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0735
_diffrn_reflns_av_sigmaI/netI    0.0271
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       84
_diffrn_reflns_limit_l_min       -89
_diffrn_reflns_number            48298
_diffrn_reflns_theta_full        71.38
_diffrn_reflns_theta_max         71.38
_diffrn_reflns_theta_min         3.27
_exptl_absorpt_coefficient_mu    7.122
_exptl_absorpt_correction_T_max  0.700
_exptl_absorpt_correction_T_min  0.350
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker SADABS'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.863
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             9744
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.05
_refine_diff_density_max         1.631
_refine_diff_density_min         -1.319
_refine_diff_density_rms         0.132
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.069
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     233
_refine_ls_number_reflns         3837
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.069
_refine_ls_R_factor_all          0.0636
_refine_ls_R_factor_gt           0.0554
_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^)+(0.0690P)^2^+174.3209P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1384
_refine_ls_wR_factor_ref         0.1447
_reflns_number_gt                3309
_reflns_number_total             3837
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c1cc15473g.txt
_cod_data_source_block           wim143
_cod_original_sg_symbol_H-M      'R -3 c'
_cod_database_code               7107116