Ring-Opening Polymerization Behavior ofansa- and Spirocyclicansa-Zirconocene Complexes
Peckham, Timothy J.; Nguyen, Paul; Bourke, Sara C.; Wang, Qinyan; Harrison, Daryll G.; Zoricak, Peter; Russell, Charles; Liable-Sands, Louise M.; Rheingold, Arnold L.; Lough, Alan J.; Manners, Ian; Organometallics 20 (2001) 3035–; doi:10.1021/om001023p

data_4077260
_publ_section_title
;
 Ring-Opening Polymerization Behavior ofansa- and
 Spirocyclicansa-Zirconocene Complexes
;
_journal_issue                   14
_journal_name_full               Organometallics
_journal_page_first              3035
_journal_paper_doi               10.1021/om001023p
_journal_volume                  20
_journal_year                    2001
_chemical_formula_sum            'C13 H14 Cl2 Si Zr'
_chemical_formula_weight         360.45
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_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                86.89(3)
_cell_angle_beta                 82.13(3)
_cell_angle_gamma                88.32(3)
_cell_formula_units_Z            2
_cell_length_a                   7.3911(15)
_cell_length_b                   8.7010(17)
_cell_length_c                   10.800(2)
_cell_measurement_reflns_used    6885
_cell_measurement_temperature    130(1)
_cell_measurement_theta_max      26.37
_cell_measurement_theta_min      2.78
_cell_volume                     686.8(2)
_computing_cell_refinement       'Denzo-SMN (Otwinowski & Minor, 1997)'
_computing_data_collection       'KappaCCD server software (Nonius, 1997)''
_computing_data_reduction        'Denzo-SMN (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'Bruker SHELXTL V5.1'
_computing_publication_material  'Bruker SHELXTL V5.1'
_computing_structure_refinement  'Bruker SHELXTL V5.1'
_computing_structure_solution    'Bruker SHELXTL V5.1'
_diffrn_ambient_temperature      130(1)
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'Nonius Kappa-CCD'
_diffrn_measurement_method       '\f scans and \w scans with \k offsets''
_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  0.0000
_diffrn_reflns_av_sigmaI/netI    0.0508
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            2778
_diffrn_reflns_theta_full        26.37
_diffrn_reflns_theta_max         26.37
_diffrn_reflns_theta_min         2.78
_diffrn_standards_decay_%        none
_exptl_absorpt_coefficient_mu    1.250
_exptl_absorpt_correction_T_max  0.8852
_exptl_absorpt_correction_T_min  0.7451
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Denzo-SMN (Otwinowski & Minor, 1997)'
_exptl_crystal_density_diffrn    1.743
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             360
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.418
_refine_diff_density_min         -0.674
_refine_diff_density_rms         0.076
_refine_ls_extinction_coef       0.0182(17)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.072
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     155
_refine_ls_number_reflns         2778
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.072
_refine_ls_R_factor_all          0.0256
_refine_ls_R_factor_gt           0.0229
_refine_ls_shift/su_max          0.004
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0081P)^2^+0.1465P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0604
_refine_ls_wR_factor_ref         0.0611
_reflns_number_gt                2516
_reflns_number_total             6885
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om001023p.cif
_cod_data_source_block           k9816
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4077260