Supramolecular coordination assemblies of a Symmetrical Octamethyl-Substituted Cucurbituril with alkali metal ions based on the outer-surface interactions of cucurbit[n]urils
Shen, Feng-Fang; Zhao, Jiang-Lin; Chen, Kai; Hua, Zi-Yi; Chen, Mindong; Zhang, Yun-Qian; Zhu, Qian-Jiang; Tao, Zhu; CrystEngComm  (2017) –; doi:10.1039/C7CE00233E

data_7227975
_publ_section_title
;
 Supramolecular coordination assemblies of a Symmetrical
 Octamethyl-Substituted Cucurbituril with alkali metal ions based on the
 outer-surface interactions of cucurbit[n]urils
;
_journal_name_full               CrystEngComm
_journal_paper_doi               10.1039/C7CE00233E
_journal_year                    2017
_chemical_formula_moiety
'C44 H54 Cs N24 O13, 4(C7 H5 O3), 3(H3 O), 7(H2 O)'
_chemical_formula_sum            'C72 H97 Cs N24 O35'
_chemical_formula_weight         1991.65
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2016-11-28 deposited with the CCDC.
2017-04-03 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 93.591(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   36.424(5)
_cell_length_b                   17.532(2)
_cell_length_c                   13.6510(18)
_cell_measurement_temperature    223(2)
_cell_volume                     8700.2(19)
_computing_cell_refinement       'SAINT (Bruker, 2005)'
_computing_data_collection       'APEX2 (Bruker, 2005)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      223(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Bruker Smart Apex2 CCD 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  0.0654
_diffrn_reflns_av_sigmaI/netI    0.0607
_diffrn_reflns_limit_h_max       43
_diffrn_reflns_limit_h_min       -42
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            36820
_diffrn_reflns_theta_full        25.10
_diffrn_reflns_theta_max         25.10
_diffrn_reflns_theta_min         1.29
_exptl_absorpt_coefficient_mu    0.528
_exptl_absorpt_correction_T_max  0.9394
_exptl_absorpt_correction_T_min  0.9157
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker, 2008)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.520
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             4128
_exptl_crystal_size_max          0.17
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.12
_platon_squeeze_details
;
;
_refine_diff_density_max         1.444
_refine_diff_density_min         -0.520
_refine_diff_density_rms         0.144
_refine_ls_extinction_coef       0.0019(5)
_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   1.539
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     560
_refine_ls_number_reflns         7706
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.539
_refine_ls_R_factor_all          0.1489
_refine_ls_R_factor_gt           0.1238
_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^)+(0.2000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.3970
_refine_ls_wR_factor_ref         0.4098
_reflns_number_gt                5091
_reflns_number_total             7706
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c7ce00233e1.cif
_cod_data_source_block           complex6
_cod_original_cell_volume        8700.3(19)
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               7227975