Synthesis and Characterization of the New Alkyl Borates [RB(C6F5)3]-(R = CH2Me, CHMe2, CH2CMe3): Utilization of [Me3CCH2B(C6F5)3]-as a Weakly Coordinating Counteranion during Zirconocene-Induced Catalysis of Propylene Polymerization
Bavarian, Neda; Baird, Michael C.; Organometallics 24 (2005) 2889–; doi:10.1021/om050242d

data_4075879
_publ_section_title
;
 Synthesis and Characterization of the New Alkyl Borates [RB(C6F5)3]-(R =
 CH2Me, CHMe2, CH2CMe3):&#x00A0; Utilization of [Me3CCH2B(C6F5)3]-as a
 Weakly Coordinating Counteranion during Zirconocene-Induced Catalysis of
 Propylene Polymerization
;
_journal_issue                   12
_journal_name_full               Organometallics
_journal_page_first              2889
_journal_paper_doi               10.1021/om050242d
_journal_volume                  24
_journal_year                    2005
_chemical_formula_sum            'C42 H29 B F15 P'
_chemical_formula_weight         860.43
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           33
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2n'
_symmetry_space_group_name_H-M   'P n a 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   16.000(8)
_cell_length_b                   13.449(7)
_cell_length_c                   17.474(8)
_cell_measurement_temperature    453(2)
_cell_volume                     3760(3)
_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      453(2)
_diffrn_measured_fraction_theta_full 0.967
_diffrn_measured_fraction_theta_max 0.967
_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  0.1039
_diffrn_reflns_av_sigmaI/netI    0.2760
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            25612
_diffrn_reflns_theta_full        28.30
_diffrn_reflns_theta_max         28.30
_diffrn_reflns_theta_min         1.91
_exptl_absorpt_coefficient_mu    0.180
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.8510
_exptl_absorpt_correction_type   'Empirical (Bruker SADABS)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.520
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1744
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.210
_refine_diff_density_min         -0.177
_refine_diff_density_rms         0.042
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.09(9)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.593
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     636
_refine_ls_number_reflns         8484
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      0.593
_refine_ls_R_factor_all          0.1796
_refine_ls_R_factor_gt           0.0373
_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^)+(0.0000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0365
_refine_ls_wR_factor_ref         0.0494
_reflns_number_gt                2825
_reflns_number_total             8484
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om050242dsi20050405_023857.cif
_cod_data_source_block           aw49a
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' 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_H-M      Pna2(1)
_cod_database_code               4075879