Octa- and Nonamethylfluorenyl Complexes of Zr(II), Zr(IV), and Hf(IV). Investigation of Steric and Electronic Effects
Bazinet, Patrick; Tilley, T. Don; Organometallics 27 (2008) 1267–; doi:10.1021/om701133e

data_4070934
_publ_section_title
;
 Octa- and Nonamethylfluorenyl Complexes of Zr(II), Zr(IV), and Hf(IV).
 Investigation of Steric and Electronic Effects
;
_journal_issue                   6
_journal_name_full               Organometallics
_journal_page_first              1267
_journal_paper_doi               10.1021/om701133e
_journal_volume                  27
_journal_year                    2008
_chemical_formula_moiety         'C34 H46 O2 Si2 Zr'
_chemical_formula_sum            'C34 H46 O2 Si2 Zr'
_chemical_formula_weight         634.11
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 103.3300(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.8741(9)
_cell_length_b                   15.1861(11)
_cell_length_c                   18.4029(14)
_cell_measurement_reflns_used    14645
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      23.253
_cell_measurement_theta_min      2.297
_cell_volume                     3229.0(4)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0226
_diffrn_reflns_av_sigmaI/netI    0.0240
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            14314
_diffrn_reflns_theta_full        23.27
_diffrn_reflns_theta_max         23.27
_diffrn_reflns_theta_min         1.76
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.443
_exptl_absorpt_correction_T_max  0.890
_exptl_absorpt_correction_T_min  0.781
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'sadabs, 2004'
_exptl_crystal_colour            Green
_exptl_crystal_density_diffrn    1.304
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             1336
_exptl_crystal_size_max          0.4
_exptl_crystal_size_mid          0.3
_exptl_crystal_size_min          0.25
_refine_diff_density_max         1.237
_refine_diff_density_min         -0.476
_refine_diff_density_rms         0.068
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.032
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     370
_refine_ls_number_reflns         4634
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.032
_refine_ls_R_factor_all          0.0434
_refine_ls_R_factor_gt           0.0364
_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^)+(0.0576P)^2^+3.8237P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0981
_refine_ls_wR_factor_ref         0.1026
_reflns_number_gt                4039
_reflns_number_total             4634
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om701133e-file003.cif
_cod_data_source_block           0725
_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_Hall     '-p 2yn'
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               4070934