From Classical Adducts to Frustrated Lewis Pairs: Steric Effects in the Interactions of Pyridines and B(C6F5)3
Stephen J. Geier; Austin L. Gille; Thomas M. Gilbert; Douglas W. Stephan; Inorganic Chemistry 48 (2009) 10466–10474; doi:10.1021/ic901726b

data_4303533
_publ_section_title
;
From Classical Adducts to Frustrated Lewis Pairs: Steric Effects in the
Interactions of Pyridines and B(C6F5)3
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              10466
_journal_page_last               10474
_journal_paper_doi               10.1021/ic901726b
_journal_volume                  48
_journal_year                    2009
_chemical_formula_sum            'C25 H9 B F15 N'
_chemical_formula_weight         619.14
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                105.149(5)
_cell_angle_beta                 94.518(5)
_cell_angle_gamma                113.003(4)
_cell_formula_units_Z            2
_cell_length_a                   9.7020(9)
_cell_length_b                   11.5301(11)
_cell_length_c                   12.1581(11)
_cell_measurement_reflns_used    9993
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      30.34
_cell_measurement_theta_min      1.77
_cell_volume                     1183.1(2)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w 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  0.0236
_diffrn_reflns_av_sigmaI/netI    0.0228
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            26862
_diffrn_reflns_theta_full        30.88
_diffrn_reflns_theta_max         30.88
_diffrn_reflns_theta_min         1.77
_exptl_absorpt_coefficient_mu    0.185
_exptl_absorpt_correction_T_max  0.7461
_exptl_absorpt_correction_T_min  0.6919
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.738
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             612
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.350
_refine_diff_density_min         -0.234
_refine_diff_density_rms         0.052
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.093
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     379
_refine_ls_number_reflns         7401
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.093
_refine_ls_R_factor_all          0.0557
_refine_ls_R_factor_gt           0.0427
_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^)+(0.0432P)^2^+0.7654P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1174
_refine_ls_wR_factor_ref         0.1238
_reflns_number_gt                5857
_reflns_number_total             7401
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic901726b_si_002_03.cif
_cod_data_source_block           ((2-Et)C5H4N-B(C6F5)3)
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_cell_volume        1183.10(19)
_cod_database_code               4303533