Macrocycle-based metal ion complexation: a study of the lanthanide contraction effect towards hexacyclohexanocucurbit[6]uil
Qin, Xiao; Ni, Xin-Long; Hu, Jing-Xu; Chen, Kai; Zhang, Yun-Qian; Redshaw, Carl; Zhu, Qian-Jiang; Xue, Sai-Feng; Tao, Zhu; CrystEngComm 15 (2013) 738–; doi:10.1039/c2ce26225h

data_7208933
_publ_section_title
;
 Macrocycle-based metal ion complexation: a study of the lanthanide
 contraction effect towards hexacyclohexanocucurbit[6]uil
;
_journal_issue                   4
_journal_name_full               CrystEngComm
_journal_page_first              738
_journal_paper_doi               10.1039/c2ce26225h
_journal_volume                  15
_journal_year                    2013
_chemical_formula_sum            'C120 H218 N60 Nd4 O97'
_chemical_formula_weight         4630.50
_chemical_name_systematic
;
?
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                104.250(4)
_cell_angle_beta                 95.811(4)
_cell_angle_gamma                119.308(4)
_cell_formula_units_Z            1
_cell_length_a                   15.558(2)
_cell_length_b                   15.609(2)
_cell_length_c                   20.746(2)
_cell_measurement_temperature    223(2)
_cell_volume                     4108.9(9)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      223(2)
_diffrn_measured_fraction_theta_full 0.976
_diffrn_measured_fraction_theta_max 0.976
_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  0.0684
_diffrn_reflns_av_sigmaI/netI    0.0752
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            39166
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.05
_exptl_absorpt_coefficient_mu    1.379
_exptl_absorpt_correction_T_max  0.8631
_exptl_absorpt_correction_T_min  0.7994
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker, 2008)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.871
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             2374
_exptl_crystal_size_max          0.17
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.11
_platon_squeeze_details
;
;
_refine_diff_density_max         4.867
_refine_diff_density_min         -3.494
_refine_diff_density_rms         0.215
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.071
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1153
_refine_ls_number_reflns         14141
_refine_ls_number_restraints     10
_refine_ls_restrained_S_all      3.741
_refine_ls_R_factor_all          0.0997
_refine_ls_R_factor_gt           0.0927
_refine_ls_shift/su_max          0.129
_refine_ls_shift/su_mean         0.003
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0836P)^2^+95.4895P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2341
_refine_ls_wR_factor_ref         0.2380
_reflns_number_gt                12176
_reflns_number_total             14141
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2ce26225h.txt
_cod_data_source_block           p8
_cod_original_cell_volume        4108.7(9)
_cod_database_code               7208933