Reductive Reactivity of the Organolanthanide Hydrides, [(C5Me5)2LnH]x, Leads to an sa-Allyl Cyclopentadienyl (η5-C5Me4CH2-C5Me4CH2-η3)2- and Trianionic Cyclooctatetraenyl (C8H7)3- Ligands
William J. Evans; Benjamin M. Schmiege; Sara E. Lorenz; Kevin A. Miller; Timothy M. Champagne; Joseph W. Ziller; Antonio G. DiPasquale; Arnold L. Rheingold; Journal of the American Chemical Society 130 (2008) 8555–8563; doi:10.1021/ja8011726

data_4107953
_publ_section_title
;
 Reductive Reactivity of the Organolanthanide Hydrides, [(C5Me5)2LnH]x,
 Leads to an sa-Allyl Cyclopentadienyl (\h5-C5Me4CH2-C5Me4CH2-\h3)2- and
 Trianionic Cyclooctatetraenyl (C8H7)3- Ligands
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              8555
_journal_page_last               8563
_journal_paper_doi               10.1021/ja8011726
_journal_volume                  130
_journal_year                    2008
_chemical_formula_sum            'C38 H52 Y2'
_chemical_formula_weight         686.62
_chemical_name_systematic
; 

 ? 

;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 93.001(5)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.420(3)
_cell_length_b                   16.807(5)
_cell_length_c                   24.239(8)
_cell_measurement_reflns_used    2861
_cell_measurement_temperature    208(2)
_cell_measurement_theta_max      24.32
_cell_measurement_theta_min      2.53
_cell_volume                     3425(2)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    ORTEP-32
_computing_publication_material  WinGX
_computing_structure_refinement  SHELXL-97
_computing_structure_solution    SIR-97
_diffrn_ambient_temperature      208(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0747
_diffrn_reflns_av_sigmaI/netI    0.0927
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            19053
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.03
_diffrn_reflns_theta_min         2.07
_exptl_absorpt_coefficient_mu    3.394
_exptl_absorpt_correction_T_max  0.9352
_exptl_absorpt_correction_T_min  0.6300
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            'light yellow'
_exptl_crystal_density_diffrn    1.331
_exptl_crystal_description       plate
_exptl_crystal_F_000             1432
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.579
_refine_diff_density_min         -0.512
_refine_diff_density_rms         0.091
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.031
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     376
_refine_ls_number_reflns         6034
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.031
_refine_ls_R_factor_all          0.1052
_refine_ls_R_factor_gt           0.0524
_refine_ls_shift/su_max          0.060
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0572P)^2^+0.7800P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1109
_refine_ls_wR_factor_ref         0.1285
_reflns_number_gt                3776
_reflns_number_total             6034
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja8011726-file005.cif
_cod_data_source_block           uci17
_cod_original_cell_volume        3425.6(18)
_cod_database_code               4107953