Synthesis and Characterization of Bidentate Rare-Earth Iminophosphoraneo-Aryl Complexes and Their Behavior As Catalysts for the Polymerization of 1,3-Butadiene
Martinez-Arripe, Elsa; Jean-Baptiste-dit-Dominique, François; Auffrant, Audrey; Le Goff, Xavier-Frédéric; Thuilliez, Julien; Nief, François; Organometallics 31 (2012) 4854–; doi:10.1021/om300389v

data_4078748
_publ_section_title
;
 Synthesis and Characterization of Bidentate Rare-Earth
 Iminophosphoraneo-Aryl Complexes and Their Behavior As Catalysts for the
 Polymerization of 1,3-Butadiene
;
_journal_issue                   13
_journal_name_full               Organometallics
_journal_page_first              4854
_journal_paper_doi               10.1021/om300389v
_journal_volume                  31
_journal_year                    2012
_chemical_formula_moiety         'C37 H55 Cl4 Li2 N O4 P Si Y, 1/2 (C4 H8 O)'
_chemical_formula_sum            'C39 H59 Cl4 Li2 N O4.5 P Si Y'
_chemical_formula_weight         917.52
_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                 115.468(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   17.258(1)
_cell_length_b                   11.338(1)
_cell_length_c                   26.404(1)
_cell_measurement_reflns_used    2702
_cell_measurement_temperature    150.0(1)
_cell_measurement_theta_max      27.485
_cell_measurement_theta_min      0.998
_cell_volume                     4664.5(5)
_computing_cell_refinement       'DENZO (Otwinowski & Minor, 1997) & COLLECT'
_computing_data_collection       'COLLECT (Hooft, R.W.W., 1998)'
_computing_data_reduction        'DENZO & COLLECT'
_computing_molecular_graphics    'PLATON (Spek, 2009)'
_computing_publication_material  'PLATON (Spek, 2009)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR97 (Altomare et al., 1999)'
_diffrn_ambient_temperature      150.0(1)
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.988
_diffrn_measurement_device_type  'Kappa APEX II'
_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     0.71069
_diffrn_reflns_av_R_equivalents  0.0467
_diffrn_reflns_av_sigmaI/netI    0.0489
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            25770
_diffrn_reflns_theta_full        25.35
_diffrn_reflns_theta_max         25.35
_diffrn_reflns_theta_min         2.98
_exptl_absorpt_coefficient_mu    1.577
_exptl_absorpt_correction_T_max  0.8842
_exptl_absorpt_correction_T_min  0.6491
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Denzo/Scalepack (Otwinowski & Minor, 1996)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.307
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             1912
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.08
_platon_squeeze_details
;
 One half highly disordered C4H8O molecule was accounted for using the
 Platon SQUEEZE function.
;
_refine_diff_density_max         0.609
_refine_diff_density_min         -0.557
_refine_diff_density_rms         0.078
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.054
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     476
_refine_ls_number_reflns         8440
_refine_ls_number_restraints     20
_refine_ls_restrained_S_all      1.063
_refine_ls_R_factor_all          0.0671
_refine_ls_R_factor_gt           0.0498
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0195P)^2^+13.4089P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1009
_refine_ls_wR_factor_ref         0.1095
_reflns_number_gt                6813
_reflns_number_total             8440
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om300389v_si_002.cif
_cod_data_source_block           ema255
_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 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_cell_volume        4664.4(5)
_cod_original_sg_symbol_H-M      'P21/c     '
_cod_original_formula_sum        'C39 H59 Cl4 Li2 N O4.50 P Si Y'
_cod_database_code               4078748