Solid-State Structures of Base-Free Lithium and Sodium Tetraphenylborates at Room and Low Temperature: Comparison with the Higher Homologues MB(C6H5)4(M = K, Rb, Cs)
Behrens, Ulrich; Hoffmann, Frank; Olbrich, Falk; Organometallics 31 (2012) 905–; doi:10.1021/om200943n

data_4067940
_publ_section_title
;
 Solid-State Structures of Base-Free Lithium and Sodium Tetraphenylborates
 at Room and Low Temperature: Comparison with the Higher Homologues
 MB(C6H5)4(M = K, Rb, Cs)
;
_journal_issue                   3
_journal_name_full               Organometallics
_journal_page_first              905
_journal_paper_doi               10.1021/om200943n
_journal_volume                  31
_journal_year                    2012
_chemical_formula_moiety         'C24 H20 B Rb'
_chemical_formula_sum            'C24 H20 B Rb'
_chemical_formula_weight         404.68
_chemical_name_common            RbB(C6H5)4
_chemical_name_systematic
; 
 Rubidium tetraphenylborate at 153 K
;
_space_group_IT_number           121
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  'I -4 2'
_symmetry_space_group_name_H-M   'I -4 2 m'
_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            2
_cell_length_a                   11.1556(6)
_cell_length_b                   11.1556(6)
_cell_length_c                   8.0534(7)
_cell_measurement_reflns_used    100
_cell_measurement_temperature    153
_cell_measurement_theta_max      27.50
_cell_measurement_theta_min      2.00
_cell_volume                     1002.22(12)
_computing_cell_refinement       'SAINT (Bruker AXS, 1998)'
_computing_data_collection       'SMART (Bruker AXS, 1998)'
_computing_data_reduction        'SAINT (Bruker AXS, 1998)'
_computing_molecular_graphics    'SHELXTL (Bruker AXS, 1998)'
_computing_publication_material  'SHELXTL (Bruker AXS, 1998)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      153
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'Bruker AXS, 1998'
_diffrn_measurement_method       omega-scan
_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  0.0445
_diffrn_reflns_av_sigmaI/netI    0.0176
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            6020
_diffrn_reflns_theta_full        27.98
_diffrn_reflns_theta_max         27.98
_diffrn_reflns_theta_min         2.58
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count none
_diffrn_standards_interval_time  none
_diffrn_standards_number         none
_exptl_absorpt_coefficient_mu    2.474
_exptl_absorpt_correction_T_max  0.7234
_exptl_absorpt_correction_T_min  0.3184
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker AXS, 1998)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.341
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             412
_exptl_crystal_size_max          0.60
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.14
_refine_diff_density_max         0.951
_refine_diff_density_min         -0.484
_refine_diff_density_rms         0.076
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.028(10)
_refine_ls_extinction_coef       none
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.000
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     38
_refine_ls_number_reflns         643
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.000
_refine_ls_R_factor_all          0.0269
_refine_ls_R_factor_gt           0.0269
_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^)+(0.0610P)^2^+0.1097P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0671
_refine_ls_wR_factor_ref         0.0671
_reflns_number_gt                643
_reflns_number_total             643
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om200943n_si_002.cif
_cod_data_source_block           f140
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
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_cod_database_code               4067940