Construction of Cucurbit[7]uril Based Tubular Nanochannels Incorporating Associated [CdCl4]2- and Lanthanide Ions
Li-Li Liang; Xin-Long Ni; Yi Zhao; Kai Chen; Xin Xiao; Yun-Qian Zhang; Carl Redshaw; Qian-Jiang Zhu; Sai-Feng Xue; Zhu Tao; Inorganic Chemistry 52 (2013) 1909–1915; doi:10.1021/ic302145j

data_4333844
_publ_section_title
;
 Construction of Cucurbit[7]uril Based Tubular Nanochannels Incorporating
 Associated [CdCl4]2- and Lanthanide Ions
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              1909
_journal_page_last               1915
_journal_paper_doi               10.1021/ic302145j
_journal_volume                  52
_journal_year                    2013
_chemical_formula_moiety
'C42 H42 N28 O24 Tb2, (Cd Cl4), 4(Cl), 40(H2 O)'
_chemical_formula_sum            'C42 H142 Cd Cl8 N28 O64 Tb2'
_chemical_formula_weight         2777.68
_chemical_name_systematic
;
 ?
;
_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                 97.399(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   16.969(2)
_cell_length_b                   27.923(4)
_cell_length_c                   20.348(3)
_cell_measurement_temperature    223(2)
_cell_volume                     9561(2)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      223(2)
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'Bruker CCD Area Detector'
_diffrn_measurement_method       '\f and \w scan'
_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  0.1349
_diffrn_reflns_av_sigmaI/netI    0.1162
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       32
_diffrn_reflns_limit_k_min       -28
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            72241
_diffrn_reflns_theta_full        25.10
_diffrn_reflns_theta_max         25.10
_diffrn_reflns_theta_min         1.21
_exptl_absorpt_coefficient_mu    2.033
_exptl_absorpt_correction_T_max  0.8225
_exptl_absorpt_correction_T_min  0.7110
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker, 2008)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.930
_exptl_crystal_description       prism
_exptl_crystal_F_000             5664
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.10
_platon_squeeze_details
;
;
_refine_diff_density_max         4.875
_refine_diff_density_min         -3.295
_refine_diff_density_rms         0.288
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.034
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     956
_refine_ls_number_reflns         16877
_refine_ls_number_restraints     584
_refine_ls_restrained_S_all      1.019
_refine_ls_R_factor_all          0.1254
_refine_ls_R_factor_gt           0.0950
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1735P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2574
_refine_ls_wR_factor_ref         0.2841
_reflns_number_gt                10812
_reflns_number_total             16877
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic302145j_si_001_14.cif
_cod_data_source_block           p08
_cod_original_cell_volume        9562(2)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4333844