One ligand fits all: lanthanide and actinide sandwich complexes comprising the 1,4-bis(trimethylsilyl)cyclooctatetraenyl (=COT′′) ligand
Rausch, Janek; Apostolidis, Christos; Walter, Olaf; Lorenz, Volker; Hrib, Cristian G.; Hilfert, Liane; Kühling, Marcel; Busse, Sabine; Edelmann, Frank T.; New J. Chem. 39 (2015) 7656–; doi:10.1039/C5NJ00991J

data_7054901
_publ_section_title
;
 One ligand fits all: lanthanide and actinide sandwich complexes
 comprising the 1,4-bis(trimethylsilyl)cyclooctatetraenyl
 (=COT&#x2032;&#x2032;) ligand
;
_journal_issue                   10
_journal_name_full               'New J. Chem.'
_journal_page_first              7656
_journal_paper_doi               10.1039/C5NJ00991J
_journal_volume                  39
_journal_year                    2015
_chemical_formula_moiety         'C68 H128 Si12 U2'
_chemical_formula_sum            'C68 H128 Si12 U2'
_chemical_formula_weight         1758.84
_chemical_name_systematic
;
 ?
;
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2013
_audit_update_record
;
2015-02-16 deposited with the CCDC.
2015-06-03 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 107.923(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   23.381(3)
_cell_length_b                   21.170(3)
_cell_length_c                   18.125(2)
_cell_measurement_reflns_used    9413
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      26.29
_cell_measurement_theta_min      2.362
_cell_volume                     8536.1(19)
_computing_cell_refinement       'APEX II (Bruker, 2007)'
_computing_data_collection       'APEX II (Bruker, 2007)'
_computing_data_reduction        'SAINT (Bruker, 2007)'
_computing_molecular_graphics
'XPMA (Zsolnai, 1996), ORTEP (Farrugia, 1997)'
_computing_publication_material  'publCIF (Westrip, 2010)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      200(2)
_diffrn_detector_area_resol_mean 66
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker Apex II Quazar'
_diffrn_measurement_method       'combined omega- and phi-scan'
_diffrn_radiation_source         'Microfocus Source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0511
_diffrn_reflns_av_unetI/netI     0.0324
_diffrn_reflns_laue_measured_fraction_full 1.000
_diffrn_reflns_laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       28
_diffrn_reflns_limit_h_min       -29
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            140146
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        25.000
_diffrn_reflns_theta_max         26.386
_diffrn_reflns_theta_min         1.328
_exptl_absorpt_coefficient_mu    3.991
_exptl_absorpt_correction_T_max  0.9244
_exptl_absorpt_correction_T_min  0.5024
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   (sadabs)
_exptl_crystal_colour            'dark red'
_exptl_crystal_density_diffrn    1.369
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             3552
_exptl_crystal_size_max          0.200
_exptl_crystal_size_mid          0.080
_exptl_crystal_size_min          0.020
_refine_diff_density_max         3.547
_refine_diff_density_min         -1.851
_refine_diff_density_rms         0.133
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.128
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     735
_refine_ls_number_reflns         17466
_refine_ls_number_restraints     150
_refine_ls_restrained_S_all      1.142
_refine_ls_R_factor_all          0.0856
_refine_ls_R_factor_gt           0.0421
_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^)+(0.0255P)^2^+57.2472P]
 where P=(Fo^2^+2Fc^2^)/3
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0858
_refine_ls_wR_factor_ref         0.1127
_reflns_Friedel_coverage         0.000
_reflns_number_gt                11618
_reflns_number_total             17466
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c5nj00991j1.cif
_cod_data_source_block           cait32
_cod_depositor_comments
'Adding full bibliography for 7054898--7054908.cif.'
_cod_original_cell_volume        8536.3(18)
_cod_database_code               7054901
_shelx_estimated_absorpt_t_min   0.502
_shelx_estimated_absorpt_t_max   0.924
_shelxl_version_number           2013-2
_shelx_res_checksum              74332