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_4075877
_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            'C56 H35 B F15 N P2'
_chemical_formula_weight         1079.60
_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                 91.713(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.854(2)
_cell_length_b                   18.717(3)
_cell_length_c                   20.397(4)
_cell_measurement_temperature    180(2)
_cell_volume                     4905.1(15)
_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      180(2)
_diffrn_measured_fraction_theta_full 0.945
_diffrn_measured_fraction_theta_max 0.945
_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  0.0539
_diffrn_reflns_av_sigmaI/netI    0.1320
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            34522
_diffrn_reflns_theta_full        28.32
_diffrn_reflns_theta_max         28.32
_diffrn_reflns_theta_min         1.48
_exptl_absorpt_coefficient_mu    0.186
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.8453
_exptl_absorpt_correction_type   'Empirical (Bruker SADABS)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.462
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2192
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.427
_refine_diff_density_min         -0.248
_refine_diff_density_rms         0.046
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.799
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     796
_refine_ls_number_reflns         11546
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.799
_refine_ls_R_factor_all          0.1344
_refine_ls_R_factor_gt           0.0488
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0448P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0924
_refine_ls_wR_factor_ref         0.1082
_reflns_number_gt                4877
_reflns_number_total             11546
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om050242dsi20050405_023808.cif
_cod_data_source_block           aw71
_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_H-M      P2(1)/n
_cod_database_code               4075877