Rare-Earth-Metal Complexes Bearing Phosphazene Ancillary Ligands: Structures and Catalysis toward Highly Trans-1,4-Selective (Co)Polymerizations of Conjugated Dienes
Rong, Weifeng; Liu, Dongtao; Zuo, Huiping; Pan, Yupeng; Jian, Zhongbao; Li, Shihui; Cui, Dongmei; Organometallics 32 (2013) 1166–; doi:10.1021/om300967h

data_4080179
_publ_section_title
;
 Rare-Earth-Metal Complexes Bearing Phosphazene Ancillary Ligands:
 Structures and Catalysis toward Highly Trans-1,4-Selective
 (Co)Polymerizations of Conjugated Dienes
;
_journal_issue                   5
_journal_name_full               Organometallics
_journal_page_first              1166
_journal_paper_doi               10.1021/om300967h
_journal_volume                  32
_journal_year                    2013
_chemical_formula_sum            'C51 H60 Lu N3 O0 P2 Si2'
_chemical_formula_weight         1008.11
_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                 90.7600(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.5727(5)
_cell_length_b                   14.8201(5)
_cell_length_c                   23.1035(8)
_cell_measurement_temperature    273(2)
_cell_volume                     4989.2(3)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_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      273(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     0.71073
_diffrn_reflns_av_R_equivalents  0.0465
_diffrn_reflns_av_sigmaI/netI    0.0558
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            27245
_diffrn_reflns_theta_full        26.07
_diffrn_reflns_theta_max         26.07
_diffrn_reflns_theta_min         1.40
_exptl_absorpt_coefficient_mu    2.126
_exptl_absorpt_correction_T_max  0.7409
_exptl_absorpt_correction_T_min  0.6757
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.342
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2064
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.753
_refine_diff_density_min         -0.438
_refine_diff_density_rms         0.110
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.038
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     539
_refine_ls_number_reflns         9880
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.038
_refine_ls_R_factor_all          0.0476
_refine_ls_R_factor_gt           0.0318
_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^)+(0.0345P)^2^+1.5971P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0703
_refine_ls_wR_factor_ref         0.0851
_reflns_number_gt                7722
_reflns_number_total             9880
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om300967h_si_002.cif
_cod_data_source_block           1c
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               4080179