Phosphazene-Functionalized Cyclopentadienyl and Its Derivatives Ligated Rare-Earth Metal Alkyl Complexes: Synthesis, Structures, and Catalysis on Ethylene Polymerization
Jian, Zhongbao; Petrov, Alex R.; Hangaly, Noa K.; Li, Shihui; Rong, Weifeng; Mou, Zehuai; Rufanov, Konstantin A.; Harms, Klaus; Sundermeyer, Jörg; Cui, Dongmei; Organometallics 31 (2012) 4267–; doi:10.1021/om300263p

data_4078488
_publ_section_title
;
 Phosphazene-Functionalized Cyclopentadienyl and Its Derivatives Ligated
 Rare-Earth Metal Alkyl Complexes: Synthesis, Structures, and Catalysis on
 Ethylene Polymerization
;
_journal_issue                   11
_journal_name_full               Organometallics
_journal_page_first              4267
_journal_paper_doi               10.1021/om300263p
_journal_volume                  31
_journal_year                    2012
_chemical_formula_sum            'C48 H63 Lu N O2 P Si2'
_chemical_formula_weight         948.11
_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                 115.9670(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   20.4246(11)
_cell_length_b                   12.2682(6)
_cell_length_c                   20.6234(11)
_cell_measurement_temperature    185(2)
_cell_volume                     4646.0(4)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      185(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_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  0.0393
_diffrn_reflns_av_sigmaI/netI    0.0481
_diffrn_reflns_limit_h_max       25
_diffrn_reflns_limit_h_min       -25
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            25590
_diffrn_reflns_theta_full        26.03
_diffrn_reflns_theta_max         26.03
_diffrn_reflns_theta_min         1.87
_exptl_absorpt_coefficient_mu    2.248
_exptl_absorpt_correction_T_max  0.8065
_exptl_absorpt_correction_T_min  0.5332
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_density_diffrn    1.355
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             1952
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.10
_refine_diff_density_max         1.033
_refine_diff_density_min         -0.405
_refine_diff_density_rms         0.092
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.997
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     503
_refine_ls_number_reflns         9147
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.997
_refine_ls_R_factor_all          0.0490
_refine_ls_R_factor_gt           0.0341
_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^)+(0.0364P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0703
_refine_ls_wR_factor_ref         0.0763
_reflns_number_gt                7249
_reflns_number_total             9147
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om300263p_si_002.cif
_cod_data_source_block           9b
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               4078488