Single metal four-electron reduction by U(ii) and masked "U(ii)" compounds.
Modder, Dieuwertje K.; Palumbo, Chad T.; Douair, Iskander; Scopelliti, Rosario; Maron, Laurent; Mazzanti, Marinella; Chemical science 12 (2021) 6153–6158; doi:10.1039/d1sc00668a

data_1561186
_publ_section_title
;
 Single metal four-electron reduction by U(ii) and masked
 &quot;U(ii)&quot; compounds.
;
_journal_issue                   17
_journal_name_full               'Chemical science'
_journal_page_first              6153
_journal_page_last               6158
_journal_paper_doi               10.1039/d1sc00668a
_journal_volume                  12
_journal_year                    2021
_chemical_formula_moiety         'C72 H162 K N O24 Si6 U2, 1[C7H8]'
_chemical_formula_sum            'C72 H162 K N O24 Si6 U2'
_chemical_formula_weight         2109.72
_space_group_crystal_system      monoclinic
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_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_atom_sites_solution_secondary   difmap
_audit_block_doi                 10.5517/ccdc.csd.cc216xgn
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2018-12-06 deposited with the CCDC.	2021-03-22 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 104.632(8)
_cell_angle_gamma                90
_cell_formula_units_Z            4
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_cell_length_c                   27.910(3)
_cell_measurement_reflns_used    440
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      22
_cell_measurement_theta_min      3
_cell_volume                     10804(3)
_computing_cell_refinement
'Dirax/lsq (Duisenberg & Schreurs, 1989-2000)'
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_computing_data_reduction        'EvalCCD (Duisenberg & Schreurs, 1990-2000)'
_computing_molecular_graphics    'Mercury 3.10.3 (CCDC, 2018)'
_computing_publication_material  'CIFtab (Sheldrick, 2015)'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      100(2)
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_diffrn_measured_fraction_theta_max 0.976
_diffrn_measurement_device_type  'Bruker APEX II CCD'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'sealed tube'
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1089
_diffrn_reflns_av_unetI/netI     0.1051
_diffrn_reflns_Laue_measured_fraction_full 0.987
_diffrn_reflns_Laue_measured_fraction_max 0.976
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       36
_diffrn_reflns_limit_k_min       -36
_diffrn_reflns_limit_l_max       36
_diffrn_reflns_limit_l_min       -36
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_diffrn_reflns_point_group_measured_fraction_full 0.987
_diffrn_reflns_point_group_measured_fraction_max 0.976
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.529
_diffrn_reflns_theta_min         1.045
_exptl_absorpt_coefficient_mu    3.156
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.4666
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2008/1 (Bruker,2008) was used for absorption correction.
wR2(int) was 0.0995 before and 0.0710 after correction.
The Ratio of minimum to maximum transmission is 0.6258.
The \l/2 correction factor is 0.0015.
;
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.297
_exptl_crystal_description       prism
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_refine_diff_density_rms         0.239
_refine_ls_extinction_method     none
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_refine_ls_number_restraints     174
_refine_ls_restrained_S_all      1.109
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_refine_ls_R_factor_gt           0.0686
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+226.9032P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1330
_refine_ls_wR_factor_ref         0.1623
_reflns_Friedel_coverage         0.000
_reflns_number_gt                15324
_reflns_number_total             24309
_reflns_threshold_expression     'I > 2\s(I)'
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_cod_data_source_block           lc584
_cod_depositor_comments
'Adding full bibliography for 1561186--1561191.cif.'
_cod_original_cell_volume        10803(2)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               1561186
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.236
_shelx_estimated_absorpt_t_max   0.351
_shelx_res_checksum              41031
_shelx_hkl_checksum              5731
_shelx_fab_checksum              40261