Synthesis of Oligosilanyl Compounds of Group 4 Metallocenes with the Oxidation State +3.
Arp, Henning; Zirngast, Michaela; Marschner, Christoph; Baumgartner, Judith; Rasmussen, Kenneth; Zark, Patrick; Müller, Thomas; Organometallics 31 (2012) 4309–4319; doi:10.1021/om3001873

data_4078439
_publ_section_title
;
 Synthesis of Oligosilanyl Compounds of Group 4 Metallocenes with the
 Oxidation State +3.
;
_journal_issue                   11
_journal_name_full               Organometallics
_journal_page_first              4309
_journal_page_last               4319
_journal_paper_doi               10.1021/om3001873
_journal_volume                  31
_journal_year                    2012
_chemical_formula_sum            'C38 H82 Hf K O6 Si8'
_chemical_formula_weight         1077.35
_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                77.47(3)
_cell_angle_beta                 81.03(3)
_cell_angle_gamma                70.17(3)
_cell_formula_units_Z            2
_cell_length_a                   11.060(2)
_cell_length_b                   13.291(3)
_cell_length_c                   21.226(4)
_cell_measurement_reflns_used    3095
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      45.910
_cell_measurement_theta_min      4.552
_cell_volume                     2853.7(12)
_computing_cell_refinement       'Bruker XSCANS'
_computing_data_collection       'Bruker XSCANS'
_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      100(2)
_diffrn_measured_fraction_theta_full 0.984
_diffrn_measured_fraction_theta_max 0.984
_diffrn_measurement_device_type  'SMART APEX'
_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  0.0720
_diffrn_reflns_av_sigmaI/netI    0.1218
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            22736
_diffrn_reflns_theta_full        26.33
_diffrn_reflns_theta_max         26.33
_diffrn_reflns_theta_min         1.97
_exptl_absorpt_coefficient_mu    2.103
_exptl_absorpt_correction_T_max  0.6322
_exptl_absorpt_correction_T_min  0.5020
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.254
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needles
_exptl_crystal_F_000             1122
_exptl_crystal_size_max          0.38
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.24
_refine_diff_density_max         2.372
_refine_diff_density_min         -1.893
_refine_diff_density_rms         0.166
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.028
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     503
_refine_ls_number_reflns         11430
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.028
_refine_ls_R_factor_all          0.0882
_refine_ls_R_factor_gt           0.0645
_refine_ls_shift/su_max          0.007
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0431P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1209
_refine_ls_wR_factor_ref         0.1293
_reflns_number_gt                8911
_reflns_number_total             11430
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om3001873_si_002.cif
_cod_data_source_block           11_715j
_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 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_cell_volume        2853.7(10)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4078439