Cationic Alkylaluminum-Complexed Zirconocene Hydrides: NMR-Spectroscopic Identification, Crystallographic Structure Determination, and Interconversion with Other Zirconocene Cations
Steven M. Baldwin; John E. Bercaw; Lawrence M. Henling; Michael W. Day; Hans H. Brintzinger; Journal of the American Chemical Society 133 (2011) 1805–1813; doi:10.1021/ja1050428

data_4105612
_publ_section_title
;
 Cationic Alkylaluminum-Complexed Zirconocene Hydrides: NMR-Spectroscopic
 Identification, Crystallographic Structure Determination, and
 Interconversion with Other Zirconocene Cations
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              1805
_journal_page_last               1813
_journal_paper_doi               10.1021/ja1050428
_journal_volume                  133
_journal_year                    2011
_chemical_formula_moiety         'C30 H57 Al2 Si2 Zr, C24 B F20'
_chemical_formula_sum            'C54 H57 Al2 B F20 Si2 Zr'
_chemical_formula_weight         1298.17
_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                 103.262(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   16.2579(8)
_cell_length_b                   17.1922(7)
_cell_length_c                   21.1975(10)
_cell_measurement_reflns_used    9643
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      24.63
_cell_measurement_theta_min      2.30
_cell_volume                     5766.9(5)
_computing_cell_refinement       'Bruker SAINT-Plus v7.66A'
_computing_data_collection       'Bruker APEX2 v2009.7-0'
_computing_data_reduction        'Bruker SAINT-Plus v7.66A'
_computing_molecular_graphics    'Bruker XP v5.1'
_computing_publication_material  'Bruker XCIF 2008'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'Bruker KAPPA APEX II'
_diffrn_measurement_method       '\w scans; 10 settings'
_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  0.0580
_diffrn_reflns_av_sigmaI/netI    0.0509
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            75246
_diffrn_reflns_theta_full        27.17
_diffrn_reflns_theta_max         27.17
_diffrn_reflns_theta_min         1.43
_exptl_absorpt_coefficient_mu    0.364
_exptl_absorpt_correction_T_max  0.7455
_exptl_absorpt_correction_T_min  0.6208
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS v2008/2, Bruker-AXS, Madison, WI'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.495
_exptl_crystal_description       Blade
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_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.20
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_refine_diff_density_max         0.741
_refine_diff_density_min         -0.489
_refine_diff_density_rms         0.084
_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    Riding
_refine_ls_matrix_type           'Full matrix'
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_refine_ls_number_reflns         12697
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.883
_refine_ls_R_factor_all          0.0795
_refine_ls_R_factor_gt           0.0422
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details     w=1/s^2^(Fo^2^)
_refine_ls_weighting_scheme      sigma
_refine_ls_wR_factor_gt          0.0681
_refine_ls_wR_factor_ref         0.0719
_reflns_number_gt                8862
_reflns_number_total             12697
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja1050428_si_002.cif
_cod_data_source_block           smb04
_cod_depositor_comments
;
The following automatic conversions were performed:

'_atom_sites_solution_primary' value 'direct methods' was changed to
'direct'.

'_atom_sites_solution_secondary' value 'Difference Fourier map' was
changed to 'difmap'.

'_atom_sites_solution_hydrogens' value 'Geometric positions' was
changed to 'geom'.

Automatic conversion script
Id: cif_fix_values 6452 2018-10-05 10:23:21Z andrius 
;
_cod_database_code               4105612