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_4080352
_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            'C42 H72 Ho2 Si6'
_chemical_formula_weight         1075.40
_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                87.29(3)
_cell_angle_beta                 81.26(3)
_cell_angle_gamma                86.64(3)
_cell_formula_units_Z            2
_cell_length_a                   11.800(2)
_cell_length_b                   13.130(3)
_cell_length_c                   15.747(3)
_cell_measurement_reflns_used    18950
_cell_measurement_temperature    133(2)
_cell_measurement_theta_max      29.49
_cell_measurement_theta_min      2.00
_cell_volume                     2405.4(8)
_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      133(2)
_diffrn_detector_area_resol_mean 6.67
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_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  0.0763
_diffrn_reflns_av_sigmaI/netI    0.1185
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            20858
_diffrn_reflns_theta_full        26.37
_diffrn_reflns_theta_max         26.37
_diffrn_reflns_theta_min         1.99
_exptl_absorpt_coefficient_mu    3.441
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.485
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1084
_exptl_crystal_size_max          0.14
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.08
_refine_diff_density_max         1.868
_refine_diff_density_min         -1.686
_refine_diff_density_rms         0.163
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.979
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     502
_refine_ls_number_reflns         9741
_refine_ls_number_restraints     81
_refine_ls_restrained_S_all      0.999
_refine_ls_R_factor_all          0.1077
_refine_ls_R_factor_gt           0.0583
_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^)+(0.0343P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0906
_refine_ls_wR_factor_ref         0.1011
_reflns_number_gt                6338
_reflns_number_total             9741
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om3010993_si_003.cif
_cod_data_source_block           ip169
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4080352