Cyclopentadienyl-Like Ligand as a Reactive Site in Half-Sandwich Bis(amidinato) Rare-Earth-Metal Complexes: An Efficient Application in Catalytic Addition of Amines to Carbodiimides
Wei, Peng-Hui; Xu, Ling; Song, Li-Cheng; Zhang, Wen-Xiong; Xi, Zhenfeng; Organometallics 33 (2014) 2784–; doi:10.1021/om5002793

data_4083402
_publ_section_title
;
 Cyclopentadienyl-Like Ligand as a Reactive Site in Half-Sandwich
 Bis(amidinato) Rare-Earth-Metal Complexes: An Efficient Application in
 Catalytic Addition of Amines to Carbodiimides
;
_journal_issue                   11
_journal_name_full               Organometallics
_journal_page_first              2784
_journal_paper_doi               10.1021/om5002793
_journal_volume                  33
_journal_year                    2014
_chemical_formula_sum            'C57 H66 N4 Si Y'
_chemical_formula_weight         924.14
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 99.06(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.935(3)
_cell_length_b                   15.353(3)
_cell_length_c                   24.363(5)
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.46
_cell_measurement_theta_min      1.48
_cell_volume                     5147.3(19)
_computing_cell_refinement       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_collection       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_reduction        'CrystalClear (Rigaku Inc., 2008)'
_computing_molecular_graphics
; 
 Mercury: visualization and analysis of crystal structures, C. F. Macrae, 
 P. R. Edgington, P. McCabe, E. Pidcock, G. P. Shields, R. Taylor, 
 M. Towler and J. van de Streek, J. Appl. Cryst., 39, 453-457, 2006. 
;
_computing_publication_material  'SHELX-97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELX-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELX-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      173(2)
_diffrn_detector_area_resol_mean 28.5714
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'MM007HF + CCD (Saturn724+)'
_diffrn_measurement_method       '\w scans at fixed \c = 45\%'
_diffrn_radiation_monochromator  Confocal
_diffrn_radiation_source         'Rotating Anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0784
_diffrn_reflns_av_sigmaI/netI    0.0735
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            41963
_diffrn_reflns_theta_full        27.46
_diffrn_reflns_theta_max         27.46
_diffrn_reflns_theta_min         1.48
_exptl_absorpt_coefficient_mu    1.196
_exptl_absorpt_correction_T_max  0.8898
_exptl_absorpt_correction_T_min  0.7156
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'CrystalClear (Rigaku Inc., 2008)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.192
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1956
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.392
_refine_diff_density_min         -0.353
_refine_diff_density_rms         0.068
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.225
_refine_ls_hydrogen_treatment    none
_refine_ls_matrix_type           full
_refine_ls_number_parameters     580
_refine_ls_number_reflns         11732
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.225
_refine_ls_R_factor_all          0.1052
_refine_ls_R_factor_gt           0.0855
_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^)+(0.0326P)^2^+5.8792P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1469
_refine_ls_wR_factor_ref         0.1548
_reflns_number_gt                9812
_reflns_number_total             11732
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om5002793_si_002.cif
_cod_data_source_block           3
_cod_depositor_comments
'Adding full bibliography for 4083401--4083407.cif.'
_cod_original_cell_volume        5147.6(18)
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               4083402