Ion-pair induced self-assembly of molecular barrels with encapsulated tetraalkylammonium cations based on a bis-trisurea stave
Shaoguang Li; Wei Meiying; Xiaojuan Huang; Xiao-Juan Yang; Biao Wu; Chem.Commun. 48 (2012) 3097–; doi:10.1039/c2cc17699h

data_7107470
_publ_section_title
;
 Ion-pair induced self-assembly of molecular barrels with encapsulated
 tetraalkylammonium cations based on a bis-trisurea stave
;
_journal_name_full               Chem.Commun.
_journal_page_first              3097
_journal_paper_doi               10.1039/c2cc17699h
_journal_volume                  48
_journal_year                    2012
_chemical_formula_sum            'C76 H120 Br4 N18 O10'
_chemical_formula_weight         1765.54
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_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                 92.341(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   11.952(3)
_cell_length_b                   28.436(8)
_cell_length_c                   12.614(4)
_cell_measurement_reflns_used    6388
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      24.52
_cell_measurement_theta_min      2.41
_cell_volume                     4284(2)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_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  0.0647
_diffrn_reflns_av_sigmaI/netI    0.0642
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       33
_diffrn_reflns_limit_k_min       -33
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            27516
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.43
_exptl_absorpt_coefficient_mu    1.944
_exptl_absorpt_correction_T_max  0.6219
_exptl_absorpt_correction_T_min  0.5932
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            Yellow
_exptl_crystal_density_diffrn    1.369
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Blocl
_exptl_crystal_F_000             1844
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.29
_exptl_crystal_size_min          0.27
_refine_diff_density_max         0.760
_refine_diff_density_min         -1.098
_refine_diff_density_rms         0.081
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.037
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     495
_refine_ls_number_reflns         7455
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.037
_refine_ls_R_factor_all          0.0674
_refine_ls_R_factor_gt           0.0428
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0539P)^2^+1.1780P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1007
_refine_ls_wR_factor_ref         0.1126
_reflns_number_gt                5464
_reflns_number_total             7455
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2cc17699h.txt
_cod_data_source_block           (TEA)4LBr4
_cod_original_cell_volume        4283(2)
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7107470