Highly trans-1,4 selective (co-)polymerization of butadiene and isoprene with quinolyl anilido rare earth metal bis(alkyl) precursors.
Liu, Dongtao; Cui, Dongmei; Dalton transactions (Cambridge, England : 2003) 40 (2011) 7755–7761; doi:10.1039/c1dt10100e

data_7016055
_publ_section_title
;
 Highly trans-1,4 selective (co-)polymerization of butadiene and
 isoprene with quinolyl anilido rare earth metal bis(alkyl) precursors.
;
_journal_issue                   30
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              7755
_journal_page_last               7761
_journal_paper_doi               10.1039/c1dt10100e
_journal_volume                  40
_journal_year                    2011
_chemical_formula_sum            'C50 H65 N4 Nd O Si'
_chemical_formula_weight         910.39
_chemical_name_systematic
;
?
;
_space_group_IT_number           2
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                89.2590(10)
_cell_angle_beta                 89.7830(10)
_cell_angle_gamma                84.4310(10)
_cell_formula_units_Z            2
_cell_length_a                   11.0181(6)
_cell_length_b                   11.6008(7)
_cell_length_c                   18.1909(10)
_cell_measurement_temperature    293(2)
_cell_volume                     2314.0(2)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.983
_diffrn_measured_fraction_theta_max 0.983
_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  0.0213
_diffrn_reflns_av_sigmaI/netI    0.0452
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            12109
_diffrn_reflns_theta_full        25.04
_diffrn_reflns_theta_max         25.04
_diffrn_reflns_theta_min         1.76
_exptl_absorpt_coefficient_mu    1.187
_exptl_absorpt_correction_T_max  0.9007
_exptl_absorpt_correction_T_min  0.7972
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_density_diffrn    1.307
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             950
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.959
_refine_diff_density_min         -0.282
_refine_diff_density_rms         0.077
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.046
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     525
_refine_ls_number_reflns         8032
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.046
_refine_ls_R_factor_all          0.0482
_refine_ls_R_factor_gt           0.0385
_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^)+(0.0453P)^2^+0.5073P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0854
_refine_ls_wR_factor_ref         0.0901
_reflns_number_gt                6876
_reflns_number_total             8032
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c1dt10100e.txt
_cod_data_source_block           complex5
_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 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7016055