Synthesis of β-diketiminate-ligated bimetallic and monometallic lanthanide amide complexes and their reactivity with isoprene and AlMe3.
Sun, Song; Ouyang, Hao; Luo, Yunjie; Zhang, Yong; Shen, Qi; Yao, Yingming; Dalton transactions (Cambridge, England : 2003) 42 (2013) 16355–16364; doi:10.1039/c3dt52014e

data_7023943
_publ_section_title
;
 Synthesis of \b-diketiminate-ligated bimetallic and monometallic
 lanthanide amide complexes and their reactivity with isoprene and AlMe3.
;
_journal_issue                   46
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              16355
_journal_page_last               16364
_journal_paper_doi               10.1039/c3dt52014e
_journal_volume                  42
_journal_year                    2013
_chemical_formula_sum            'C56 H108 N8 Si8 Y2'
_chemical_formula_weight         1296.04
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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                 95.853(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.5762(8)
_cell_length_b                   20.4287(10)
_cell_length_c                   34.9745(18)
_cell_measurement_reflns_used    2887
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      25.0310
_cell_measurement_theta_min      3.4840
_cell_volume                     7517.1(8)
_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      293(2)
_diffrn_detector_area_resol_mean 10.3818
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Xcalibur, Atlas, Gemini'
_diffrn_measurement_method       '\w 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  0.0678
_diffrn_reflns_av_sigmaI/netI    0.0987
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       32
_diffrn_reflns_limit_l_min       -42
_diffrn_reflns_number            19022
_diffrn_reflns_theta_full        25.50
_diffrn_reflns_theta_max         25.50
_diffrn_reflns_theta_min         3.05
_exptl_absorpt_coefficient_mu    1.700
_exptl_absorpt_correction_T_max  0.8484
_exptl_absorpt_correction_T_min  0.4549
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.145
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       platelet
_exptl_crystal_F_000             2760
_exptl_crystal_size_max          0.55
_exptl_crystal_size_mid          0.35
_exptl_crystal_size_min          0.10
_refine_diff_density_max         1.587
_refine_diff_density_min         -2.061
_refine_diff_density_rms         0.112
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.080
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     300
_refine_ls_number_reflns         6980
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.227
_refine_ls_R_factor_all          0.1340
_refine_ls_R_factor_gt           0.0843
_refine_ls_shift/su_max          0.006
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1206P)^2^+17.2690P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2142
_refine_ls_wR_factor_ref         0.2386
_reflns_number_gt                4464
_reflns_number_total             6980
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3dt52014e.txt
_cod_data_source_block           complex4
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               7023943