Racemo-Selective Synthesis ofansa-Zirconocene Derivates from Zirconium Biphenolate Complexes
Damrau, Hans-Robert H.; Royo, Eva; Obert, Stephan; Schaper, Frank; Weeber, Armin; Brintzinger, Hans-Herbert; Organometallics 20 (2001) 5258–; doi:10.1021/om010605j

data_4077421
_publ_section_title
;
 Racemo-Selective Synthesis ofansa-Zirconocene Derivates from Zirconium
 Biphenolate Complexes
;
_journal_issue                   25
_journal_name_full               Organometallics
_journal_page_first              5258
_journal_paper_doi               10.1021/om010605j
_journal_volume                  20
_journal_year                    2001
_chemical_formula_moiety         'C58 H66 O2 Si Zr, 2 (C4 H8 O)'
_chemical_formula_sum            'C66 H82 O4 Si Zr'
_chemical_formula_weight         1058.63
_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                95.162(17)
_cell_angle_beta                 92.496(16)
_cell_angle_gamma                104.998(13)
_cell_formula_units_Z            2
_cell_length_a                   12.765(4)
_cell_length_b                   15.036(5)
_cell_length_c                   15.733(5)
_cell_measurement_reflns_used    37
_cell_measurement_temperature    233
_cell_measurement_theta_max      8.85
_cell_measurement_theta_min      4.89
_cell_volume                     2898.0(16)
_computing_cell_refinement       'Siemens XSCANS'
_computing_data_collection       'Siemens XSCANS'
_computing_data_reduction        'Siemens SHELXTL'
_computing_molecular_graphics    'Siemens SHELXTL'
_computing_publication_material  'Siemens SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      233
_diffrn_measured_fraction_theta_full 0.822
_diffrn_measured_fraction_theta_max 0.822
_diffrn_measurement_device_type  'Siemens P4'
_diffrn_measurement_method       '\w scans'
_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  0.0494
_diffrn_reflns_av_sigmaI/netI    0.1218
_diffrn_reflns_limit_h_max       0
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            8767
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         1.30
_diffrn_standards_decay_%        4.5
_diffrn_standards_interval_count 97
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.257
_exptl_absorpt_correction_T_max  0.8964
_exptl_absorpt_correction_T_min  0.8401
_exptl_absorpt_correction_type   psi-scan
_exptl_absorpt_process_details
'XPREP, G. M. Sheldrick, University of Goettingen (1990)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.213
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1128
_exptl_crystal_size_max          0.4
_exptl_crystal_size_mid          0.3
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.659
_refine_diff_density_min         -0.564
_refine_diff_density_rms         0.084
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.029
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     631
_refine_ls_number_reflns         8385
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.029
_refine_ls_R_factor_all          0.1379
_refine_ls_R_factor_gt           0.0786
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0724P)^2^+7.0626P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1671
_refine_ls_wR_factor_ref         0.1964
_reflns_number_gt                5235
_reflns_number_total             8385
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om010605j.cif
_cod_data_source_block           6c
_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_cell_volume        2898.1(16)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4077421