Synthesis and crystal structure of uranium(IV) complexes with calix[n]arenes (n = 4, 6 and 8): mononuclear, polynuclear and 1D polymeric species.
Salmon, Lionel; Thuéry, Pierre; Ephritikhine, Michel; Dalton transactions (Cambridge, England : 2003)  (2006) 3629–3637; doi:10.1039/b604712b

data_7007410
_publ_section_title
;
 Synthesis and crystal structure of uranium(IV) complexes with
 calix[n]arenes (n = 4, 6 and 8): mononuclear, polynuclear and 1D
 polymeric species.
;
_journal_issue                   30
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              3629
_journal_page_last               3637
_journal_paper_doi               10.1039/b604712b
_journal_year                    2006
_chemical_formula_sum            'C202 H172 Cl6 N18 O16 U5'
_chemical_formula_weight         4510.43
_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                 107.243(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   21.4083(15)
_cell_length_b                   27.4775(13)
_cell_length_c                   18.5799(14)
_cell_measurement_reflns_used    148163
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      25.68
_cell_measurement_theta_min      2.95
_cell_volume                     10438.3(12)
_computing_cell_refinement       'DENZO-SMN (Otwinowski & Minor, 1997)'
_computing_data_collection       'Kappa-CCD software (Nonius B.V., 1998)'
_computing_data_reduction        'DENZO-SMN (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 1999)'
_computing_publication_material
'SHELXTL (Sheldrick, 1999); PLATON (Spek, 2003)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type
'Nonius Kappa-CCD area-detector diffractometer'
_diffrn_measurement_method       'one \f and five \w scans with 2\% steps'
_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  0.1126
_diffrn_reflns_av_sigmaI/netI    0.1468
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_h_min       -26
_diffrn_reflns_limit_k_max       0
_diffrn_reflns_limit_k_min       -33
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            148163
_diffrn_reflns_theta_full        25.68
_diffrn_reflns_theta_max         25.68
_diffrn_reflns_theta_min         2.95
_diffrn_standards_decay_%        0
_diffrn_standards_interval_time  0
_exptl_absorpt_coefficient_mu    4.002
_exptl_absorpt_correction_T_max  0.619
_exptl_absorpt_correction_T_min  0.505
_exptl_absorpt_correction_type   refdelf
_exptl_absorpt_process_details   'program DELABS from PLATON (Spek, 2003)'
_exptl_crystal_colour            'translucent light orange'
_exptl_crystal_density_diffrn    1.435
_exptl_crystal_density_meas      ?
_exptl_crystal_description       parallelepiped
_exptl_crystal_F_000             4400
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.12
_refine_diff_density_max         1.675
_refine_diff_density_min         -0.825
_refine_diff_density_rms         0.171
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.959
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1078
_refine_ls_number_reflns         19622
_refine_ls_number_restraints     180
_refine_ls_restrained_S_all      0.961
_refine_ls_R_factor_all          0.1644
_refine_ls_R_factor_gt           0.0746
_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^)+(0.1177P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1781
_refine_ls_wR_factor_ref         0.2096
_reflns_number_gt                9919
_reflns_number_total             19622
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b604712b.txt
_cod_data_source_block           7.8py
_cod_original_cell_volume        10438.4(12)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7007410