Synthesis and crystal structure of uranium(IV) complexes with compartmental Schiff bases: from mononuclear species to tri- and tetranuclear clusters.
Salmon, Lionel; Thuéry, Pierre; Ephritikhine, Michel; Dalton transactions (Cambridge, England : 2003)  (2004) 1635–1643; doi:10.1039/b403459g

data_7014205
_publ_section_title
;
 Synthesis and crystal structure of uranium(IV) complexes with
 compartmental Schiff bases: from mononuclear species to tri- and
 tetranuclear clusters.
;
_journal_issue                   10
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              1635
_journal_page_last               1643
_journal_paper_doi               10.1039/b403459g
_journal_year                    2004
_chemical_formula_sum            'C48 H44 N4 O9 U'
_chemical_formula_weight         1058.90
_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     patter
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 110.327(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   21.8781(12)
_cell_length_b                   13.3968(8)
_cell_length_c                   14.9141(6)
_cell_measurement_reflns_used    13990
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      25.68
_cell_measurement_theta_min      2.91
_cell_volume                     4099.1(4)
_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)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 18
_diffrn_measured_fraction_theta_full 0.965
_diffrn_measured_fraction_theta_max 0.965
_diffrn_measurement_device_type  'Nonius Kappa-CCD'
_diffrn_measurement_method       '\f scans'
_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  0.0652
_diffrn_reflns_av_sigmaI/netI    0.0545
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       -26
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            13990
_diffrn_reflns_theta_full        25.68
_diffrn_reflns_theta_max         25.68
_diffrn_reflns_theta_min         2.91
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    4.025
_exptl_absorpt_correction_T_max  0.803
_exptl_absorpt_correction_T_min  0.653
_exptl_absorpt_correction_type   refdelf
_exptl_absorpt_process_details   'program DELABS from PLATON (Spek, 2000)'
_exptl_crystal_colour            'translucent dark brown'
_exptl_crystal_density_diffrn    1.716
_exptl_crystal_density_meas      ?
_exptl_crystal_description       needle
_exptl_crystal_F_000             2096
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.05
_refine_diff_density_max         1.260
_refine_diff_density_min         -1.009
_refine_diff_density_rms         0.153
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.143
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     296
_refine_ls_number_reflns         3766
_refine_ls_number_restraints     40
_refine_ls_restrained_S_all      1.169
_refine_ls_R_factor_all          0.0467
_refine_ls_R_factor_gt           0.0392
_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^)+(0.0535P)^2^+6.9692P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0979
_refine_ls_wR_factor_ref         0.1014
_reflns_number_gt                3376
_reflns_number_total             3766
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b403459g.txt
_cod_data_source_block           2.thf
_cod_original_cell_volume        4099.0(4)
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               7014205