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_7054902
_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_sum            'C44 H80 Ho Li O4 Si4'
_chemical_formula_weight         957.31
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2015-03-05 deposited with the CCDC.
2015-06-03 downloaded from the CCDC.
;
_cell_angle_alpha                87.12(3)
_cell_angle_beta                 82.38(3)
_cell_angle_gamma                77.39(3)
_cell_formula_units_Z            2
_cell_length_a                   11.358(2)
_cell_length_b                   11.657(2)
_cell_length_c                   19.603(4)
_cell_measurement_reflns_used    33800
_cell_measurement_temperature    153(2)
_cell_measurement_theta_max      29.56
_cell_measurement_theta_min      2.01
_cell_volume                     2509.9(9)
_computing_cell_refinement       'STOE X-AREA'
_computing_data_collection       'STOE X-AREA'
_computing_data_reduction        'STOE X-RED'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      153(2)
_diffrn_detector_area_resol_mean 6.67
_diffrn_measured_fraction_theta_full 0.970
_diffrn_measured_fraction_theta_max 0.970
_diffrn_measurement_device_type  'STOE IPDS 2T'
_diffrn_measurement_method       'rotation method'
_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  0.0670
_diffrn_reflns_av_sigmaI/netI    0.0857
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            27836
_diffrn_reflns_theta_full        29.37
_diffrn_reflns_theta_max         29.37
_diffrn_reflns_theta_min         2.01
_exptl_absorpt_coefficient_mu    1.707
_exptl_absorpt_correction_T_max  0.3785
_exptl_absorpt_correction_T_min  0.3643
_exptl_absorpt_correction_type   sphere
_exptl_absorpt_process_details
;
Interpolation using  Int.Tab. Vol. C (1992) p. 523,Tab. 6.3.3.3
for values of muR in the range 0-2.5, and Int.Tab. Vol.II (1959)
p.302; Table 5.3.6 B for muR in the range 2.6-10.0.
The interpolation procedure of C.W.Dwiggins Jr (Acta Cryst.(1975)
A31,146-148) is used with some modification.
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.267
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1004
_exptl_crystal_size_max          0.42
_exptl_crystal_size_mid          0.37
_exptl_crystal_size_min          0.17
_exptl_crystal_size_rad          0.4200
_refine_diff_density_max         0.954
_refine_diff_density_min         -2.229
_refine_diff_density_rms         0.114
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.034
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     579
_refine_ls_number_reflns         13400
_refine_ls_number_restraints     164
_refine_ls_restrained_S_all      1.031
_refine_ls_R_factor_all          0.0735
_refine_ls_R_factor_gt           0.0491
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0310P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0805
_refine_ls_wR_factor_ref         0.0859
_reflns_number_gt                10605
_reflns_number_total             13400
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c5nj00991j1.cif
_cod_data_source_block           ip207
_cod_depositor_comments
'Adding full bibliography for 7054898--7054908.cif.'
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7054902