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_7007409
_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            'C67 H58 Cl5 N5 O6 U2'
_chemical_formula_weight         1682.49
_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                 106.721(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.6847(5)
_cell_length_b                   21.1309(7)
_cell_length_c                   20.9186(4)
_cell_measurement_reflns_used    102896
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      25.68
_cell_measurement_theta_min      2.94
_cell_volume                     6216.6(3)
_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 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type
'Nonius Kappa-CCD area-detector diffractometer'
_diffrn_measurement_method       'two \f and two \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  0.0702
_diffrn_reflns_av_sigmaI/netI    0.0409
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            102896
_diffrn_reflns_theta_full        25.68
_diffrn_reflns_theta_max         25.68
_diffrn_reflns_theta_min         2.94
_diffrn_standards_decay_%        0
_diffrn_standards_interval_time  0
_exptl_absorpt_coefficient_mu    5.475
_exptl_absorpt_correction_T_max  0.518
_exptl_absorpt_correction_T_min  0.364
_exptl_absorpt_correction_type   refdelf
_exptl_absorpt_process_details   'program DELABS from PLATON (Spek, 2003)'
_exptl_crystal_colour            'translucent light green'
_exptl_crystal_density_diffrn    1.798
_exptl_crystal_density_meas      ?
_exptl_crystal_description       irregular
_exptl_crystal_F_000             3248
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.12
_refine_diff_density_max         1.008
_refine_diff_density_min         -1.300
_refine_diff_density_rms         0.133
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.062
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     766
_refine_ls_number_reflns         11793
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.062
_refine_ls_R_factor_all          0.0425
_refine_ls_R_factor_gt           0.0296
_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^)+(0.0441P)^2^+5.7398P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0769
_refine_ls_wR_factor_ref         0.0804
_reflns_number_gt                9791
_reflns_number_total             11793
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b604712b.txt
_cod_data_source_block           6.py
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7007409