Steric Effects in Lanthanide Sandwich Complexes Containing Bulky Cyclooctatetraenyl Ligands
Edelmann, Anja; Lorenz, Volker; Hrib, Cristian G.; Hilfert, Liane; Blaurock, Steffen; Edelmann, Frank T.; Organometallics 32 (2013) 1435–; doi:10.1021/om3010993

data_4080347
_publ_section_title
;
 Steric Effects in Lanthanide Sandwich Complexes Containing Bulky
 Cyclooctatetraenyl Ligands
;
_journal_issue                   5
_journal_name_full               Organometallics
_journal_page_first              1435
_journal_paper_doi               10.1021/om3010993
_journal_volume                  32
_journal_year                    2013
_chemical_formula_sum            'C40 H78 Ce Li O6 Si4'
_chemical_formula_weight         914.44
_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
_cell_angle_alpha                98.92(3)
_cell_angle_beta                 102.40(3)
_cell_angle_gamma                98.87(3)
_cell_formula_units_Z            2
_cell_length_a                   11.616(2)
_cell_length_b                   12.321(3)
_cell_length_c                   18.436(4)
_cell_measurement_reflns_used    673
_cell_measurement_temperature    180(2)
_cell_measurement_theta_max      29.22
_cell_measurement_theta_min      2.14
_cell_volume                     2497.3(11)
_computing_cell_refinement       'Stoe XAREA'
_computing_data_collection       'Stoe XAREA'
_computing_data_reduction        'Stoe XAREA'
_computing_molecular_graphics    'Bruker SHELXTL PLUS'
_computing_publication_material  'Bruker SHELXTL PLUS'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      180(2)
_diffrn_measured_fraction_theta_full 0.984
_diffrn_measured_fraction_theta_max 0.984
_diffrn_measurement_device_type  'Stoe IPDS 2T'
_diffrn_measurement_method       omega-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  0.0000
_diffrn_reflns_av_sigmaI/netI    0.0470
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            13334
_diffrn_reflns_theta_full        29.22
_diffrn_reflns_theta_max         29.22
_diffrn_reflns_theta_min         2.24
_exptl_absorpt_coefficient_mu    1.045
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.216
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             966
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         2.029
_refine_diff_density_min         -0.819
_refine_diff_density_rms         0.077
_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     517
_refine_ls_number_reflns         13334
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.936
_refine_ls_R_factor_all          0.0477
_refine_ls_R_factor_gt           0.0325
_refine_ls_shift/su_max          0.030
_refine_ls_shift/su_mean         0.003
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0453P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0748
_refine_ls_wR_factor_ref         0.0783
_reflns_number_gt                10717
_reflns_number_total             13334
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om3010993_si_003.cif
_cod_data_source_block           ip2_190a
_cod_original_cell_volume        2497.3(9)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4080347