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_4067939
_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 Na'
_chemical_formula_sum            'C24 H20 B Na'
_chemical_formula_weight         342.20
_chemical_name_common            NaB(C6H5)4
_chemical_name_systematic
; 
 Sodium tetraphenylborate at 90 K
;
_space_group_IT_number           9
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'C -2yc'
_symmetry_space_group_name_H-M   'C 1 c 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                 102.173(7)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.3252(16)
_cell_length_b                   16.291(4)
_cell_length_c                   15.763(4)
_cell_measurement_reflns_used    200
_cell_measurement_temperature    90
_cell_measurement_theta_max      27.50
_cell_measurement_theta_min      2.00
_cell_volume                     1838.8(8)
_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      90
_diffrn_measured_fraction_theta_full 0.987
_diffrn_measured_fraction_theta_max 0.987
_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  0.0633
_diffrn_reflns_av_sigmaI/netI    0.0485
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            21481
_diffrn_reflns_theta_full        32.49
_diffrn_reflns_theta_max         32.49
_diffrn_reflns_theta_min         2.50
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count none
_diffrn_standards_interval_time  none
_diffrn_standards_number         none
_exptl_absorpt_coefficient_mu    0.089
_exptl_absorpt_correction_T_max  0.9832
_exptl_absorpt_correction_T_min  0.9159
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker AXS, 1998)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.236
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             720
_exptl_crystal_size_max          1.00
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.19
_refine_diff_density_max         0.470
_refine_diff_density_min         -0.724
_refine_diff_density_rms         0.098
_refine_ls_extinction_coef       0.021(8)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.002
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     271
_refine_ls_number_reflns         3292
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      1.001
_refine_ls_R_factor_all          0.1005
_refine_ls_R_factor_gt           0.0887
_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^)+(0.2160P)^2^+0.3060P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2336
_refine_ls_wR_factor_ref         0.2505
_reflns_number_gt                2827
_reflns_number_total             3292
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om200943n_si_002.cif
_cod_data_source_block           15_10hhm
_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 
;
_cod_original_cell_volume        1838.8(7)
_cod_original_sg_symbol_H-M      'C c'
_cod_database_code               4067939