B-H···π Interaction: A New Type of Nonclassical Hydrogen Bonding.
Zhang, Xiaolei; Dai, Huimin; Yan, Hong; Zou, Wenli; Cremer, Dieter; Journal of the American Chemical Society 138 (2016) 4334–4337; doi:10.1021/jacs.6b01249

data_4130205
_publ_section_title
;
 B-H&#x00B7;&#x00B7;&#x00B7;\p Interaction: A New Type of Nonclassical
 Hydrogen Bonding.
;
_journal_issue                   13
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              4334
_journal_page_last               4337
_journal_paper_doi               10.1021/jacs.6b01249
_journal_volume                  138
_journal_year                    2016
_chemical_formula_sum            'C18 H40 B10 Ir P S2'
_chemical_formula_weight         651.89
_space_group_IT_number           33
_space_group_name_Hall           'P 2c -2n'
_space_group_name_H-M_alt        'P n a 21'
_symmetry_cell_setting           orthorhombic
_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                   22.537(3)
_cell_length_b                   9.9686(11)
_cell_length_c                   12.6468(14)
_cell_measurement_temperature    293(2)
_cell_volume                     2841.3(6)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_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  0.0428
_diffrn_reflns_av_sigmaI/netI    0.0513
_diffrn_reflns_limit_h_max       27
_diffrn_reflns_limit_h_min       -27
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            16177
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         1.81
_exptl_absorpt_coefficient_mu    4.909
_exptl_crystal_density_diffrn    1.524
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1288
_refine_diff_density_max         1.093
_refine_diff_density_min         -0.544
_refine_diff_density_rms         0.089
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.037(7)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.013
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     298
_refine_ls_number_reflns         5440
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.013
_refine_ls_R_factor_all          0.0295
_refine_ls_R_factor_gt           0.0262
_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^)+(0.0176P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0601
_refine_ls_wR_factor_ref         0.0611
_reflns_number_gt                4981
_reflns_number_total             5440
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja6b01249_si_001.cif
_cod_data_source_block           B4
_cod_original_sg_symbol_H-M      Pna21
_cod_database_code               4130205