Polymerization of propylene promoted by zirconium benzamidinates.
Aharonovich, Sinai; Kulkarni, Naveen V.; Zhang, Jia-Sheng; Botoshansky, Mark; Kapon, Moshe; Eisen, Moris S.; Dalton transactions (Cambridge, England : 2003) 42 (2013) 16762–16772; doi:10.1039/c3dt51688a

data_7023891
_publ_section_title
;
 Polymerization of propylene promoted by zirconium benzamidinates.
;
_journal_issue                   48
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              16762
_journal_page_last               16772
_journal_paper_doi               10.1039/c3dt51688a
_journal_volume                  42
_journal_year                    2013
_chemical_formula_moiety         'C28 H50 Cl2 N4 O2 Si4 Zr'
_chemical_formula_sum            'C28 H50 Cl2 N4 O2 Si4 Zr'
_chemical_formula_weight         749.20
_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                 93.611(8)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   19.409(2)
_cell_length_b                   11.8110(14)
_cell_length_c                   17.5870(17)
_cell_measurement_reflns_used    76564
_cell_measurement_temperature    230.0(1)
_cell_measurement_theta_max      25.028
_cell_measurement_theta_min      0.407
_cell_volume                     4023.6(7)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Nonius (1997), KappaCCD Collect Program'
_computing_data_reduction
;
HKL Denzo and Scalepack (Otwinowski & Minor 1997)
;
_computing_molecular_graphics
;
Molecular Structure Corporation (1999). 
ORTEP. TEXRAY Structure Analysis Package. 
MSC, 3200 Research Forest Drive, The 
Woodlands,TX 77381, USA.
;
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution
;
S.Mackay, C.J.Gilmore, C.Edwards, M. Tremayne, N. Stuart, K.Shankland 
"maXus": a computer program for the solution and refinement of crystal 
structures from diffraction data University of Glasgow, Scotland, UK, 
Nonius BV, Delft, The Netherlands and MacScience Co. Ltd.,
Yokohama, Japan (1998)
;
_diffrn_ambient_temperature      230.0(1)
_diffrn_measured_fraction_theta_full 0.95
_diffrn_measured_fraction_theta_max 0.95
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       CCD
_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  0.0685
_diffrn_reflns_av_sigmaI/netI    0.1295
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            10204
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         2.02
_exptl_absorpt_coefficient_mu    0.553
_exptl_absorpt_correction_T_max  0.8517
_exptl_absorpt_correction_T_min  0.8132
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.237
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1568
_exptl_crystal_size_max          0.39
_exptl_crystal_size_mid          0.39
_exptl_crystal_size_min          0.30
_refine_diff_density_max         0.684
_refine_diff_density_min         -0.534
_refine_diff_density_rms         0.071
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.833
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     371
_refine_ls_number_reflns         6108
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.833
_refine_ls_R_factor_all          0.1258
_refine_ls_R_factor_gt           0.0565
_refine_ls_shift/su_max          0.048
_refine_ls_shift/su_mean         0.002
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0809P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1390
_refine_ls_wR_factor_ref         0.1557
_reflns_number_gt                2875
_reflns_number_total             6108
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3dt51688a.txt
_cod_data_source_block           zrdimomet
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7023891