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_4078477
_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            'C37 H53 N P Sc Si2'
_chemical_formula_weight         643.91
_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                 102.7920(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.8035(7)
_cell_length_b                   19.0339(12)
_cell_length_c                   16.0092(9)
_cell_measurement_reflns_used    5472
_cell_measurement_temperature    185(2)
_cell_measurement_theta_max      25.96
_cell_measurement_theta_min      2.51
_cell_volume                     3804.6(4)
_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      185(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'Bruker APEXII 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  0.0551
_diffrn_reflns_av_sigmaI/netI    0.0708
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            20895
_diffrn_reflns_theta_full        26.23
_diffrn_reflns_theta_max         26.23
_diffrn_reflns_theta_min         1.85
_exptl_absorpt_coefficient_mu    0.323
_exptl_absorpt_correction_T_max  0.9442
_exptl_absorpt_correction_T_min  0.9151
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_density_diffrn    1.124
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             1384
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.18
_refine_diff_density_max         1.142
_refine_diff_density_min         -0.785
_refine_diff_density_rms         0.075
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.029
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     385
_refine_ls_number_reflns         7596
_refine_ls_number_restraints     10
_refine_ls_restrained_S_all      1.047
_refine_ls_R_factor_all          0.1190
_refine_ls_R_factor_gt           0.0724
_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^)+(0.1107P)^2^+3.4781P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1878
_refine_ls_wR_factor_ref         0.2212
_reflns_number_gt                4747
_reflns_number_total             7596
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om300263p_si_002.cif
_cod_data_source_block           2a
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               4078477