Synthesis of mono-amidinate-ligated rare-earth-metal bis(silylamide) complexes and their reactivity with [Ph3C][B(C6F5)4], AlMe3 and isoprene.
Luo, Yunjie; Lei, Yinlin; Fan, Shimin; Wang, Yibin; Chen, Jue; Dalton transactions (Cambridge, England : 2003) 42 (2013) 4040–4051; doi:10.1039/c2dt32868b

data_7022507
_publ_section_title
;
 Synthesis of mono-amidinate-ligated rare-earth-metal bis(silylamide)
 complexes and their reactivity with [Ph3C][B(C6F5)4], AlMe3 and isoprene.
;
_journal_issue                   11
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              4040
_journal_page_last               4051
_journal_paper_doi               10.1039/c2dt32868b
_journal_volume                  42
_journal_year                    2013
_chemical_formula_moiety         'C35 H59 N4 O Si4 Y'
_chemical_formula_sum            'C35 H59 N4 O Si4 Y'
_chemical_formula_weight         753.13
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_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                 97.234(5)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.031(3)
_cell_length_b                   24.184(5)
_cell_length_c                   14.840(3)
_cell_measurement_reflns_used    18166
_cell_measurement_temperature    223(2)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      3.0
_cell_volume                     4283.4(16)
_computing_cell_refinement       CrystalClear
_computing_data_collection       CrystalClear
_computing_data_reduction        CrystalStructure
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      223(2)
_diffrn_detector_area_resol_mean 14.63
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Rigaku Saturn'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0611
_diffrn_reflns_av_sigmaI/netI    0.1092
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -29
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            21654
_diffrn_reflns_theta_full        25.50
_diffrn_reflns_theta_max         25.50
_diffrn_reflns_theta_min         3.05
_exptl_absorpt_coefficient_mu    1.503
_exptl_absorpt_correction_T_max  0.591
_exptl_absorpt_correction_T_min  0.300
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Jacobson, R. (1998) Private communication'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.168
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1600
_exptl_crystal_size_max          1.00
_exptl_crystal_size_mid          0.50
_exptl_crystal_size_min          0.35
_refine_diff_density_max         1.252
_refine_diff_density_min         -0.580
_refine_diff_density_rms         0.085
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.066
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     435
_refine_ls_number_reflns         7950
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.066
_refine_ls_R_factor_all          0.1023
_refine_ls_R_factor_gt           0.0718
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1050P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1828
_refine_ls_wR_factor_ref         0.2024
_reflns_number_gt                5493
_reflns_number_total             7950
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2dt32868b.txt
_cod_data_source_block           shelxl
_cod_original_cell_volume        4283.2(16)
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7022507