Old and NewC1-Symmetric Group 4 Metallocenes {(R1R2C)-(R2′R3′R6′R7′-Flu)(3-R3-5-R4-C5H2)}ZrCl2: From Highly Isotactic Polypropylenes to Vinyl End-Capped Isotactic-Enriched Oligomers
Bader, Manuela; Marquet, Nicolas; Kirillov, Evgeny; Roisnel, Thierry; Razavi, Abbas; Lhost, Olivier; Carpentier, Jean-François; Organometallics 31 (2012) 8375–; doi:10.1021/om300957k

data_4079697
_publ_section_title
;
 Old and NewC1-Symmetric Group 4 Metallocenes
 {(R1R2C)-(R2&#x2032;R3&#x2032;R6&#x2032;R7&#x2032;-Flu)(3-R3-5-R4-C5H2)}ZrCl2:
 From Highly Isotactic Polypropylenes to Vinyl End-Capped
 Isotactic-Enriched Oligomers
;
_journal_issue                   23
_journal_name_full               Organometallics
_journal_page_first              8375
_journal_paper_doi               10.1021/om300957k
_journal_volume                  31
_journal_year                    2012
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C38 H44 Cl2 Zr, C6 H14'
_chemical_formula_sum            'C44 H58 Cl2 Zr'
_chemical_formula_weight         749.02
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_Int_Tables_number      61
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_conform_dict_location     ftp://ftp.iucr.org/pub/cif_core.dic
_audit_conform_dict_name         cif_core.dic
_audit_conform_dict_version      2.3
_audit_creation_date             2008-05-15T18:50:49-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   11.551(7)
_cell_length_b                   24.178(16)
_cell_length_c                   28.816(18)
_cell_measurement_reflns_used    3079
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      22.3
_cell_measurement_theta_min      2.71
_cell_measurement_wavelength     0.71073
_cell_volume                     8048(9)
_computing_cell_refinement       'Bruker SMART, 2006'
_computing_data_collection       'Bruker SMART, 2006'
_computing_data_reduction        'Bruker SAINT, 2006'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR97 (Altomare et al., 1999)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector                 'CCD plate'
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'APEXII, Bruker-AXS'
_diffrn_measurement_method       'CCD rotation images, thin slices'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1809
_diffrn_reflns_av_unetI/netI     0.0919
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       31
_diffrn_reflns_limit_k_min       -31
_diffrn_reflns_limit_l_max       37
_diffrn_reflns_limit_l_min       -37
_diffrn_reflns_number            109620
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         3.16
_exptl_absorpt_coefficient_mu    0.434
_exptl_absorpt_correction_T_max  0.970
_exptl_absorpt_correction_T_min  0.910
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
  [Sheldrick, G.M. (2002). SADABS Bruker AXS Inc., Madison, Wisconsin, USA]
;
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.236
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plater
_exptl_crystal_F_000             3168
_exptl_crystal_size_max          0.21
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.07
_refine_diff_density_max         1.095
_refine_diff_density_min         -1.073
_refine_diff_density_rms         0.122
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.219
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     434
_refine_ls_number_reflns         9192
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.219
_refine_ls_R_factor_all          0.1458
_refine_ls_R_factor_gt           0.103
_refine_ls_shift/su_max          0.009
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0218P)^2^+59.1693P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.176
_refine_ls_wR_factor_ref         0.1937
_reflns_number_gt                6546
_reflns_number_total             9192
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om300957k_si_002.cif
_cod_data_source_block           3d
_cod_database_code               4079697