Completing the series of boron-nucleophilic cyanoborates: Boryl anions of type (NHC)−B(CN)2−
Böser, Richard; Haufe, Lisa Cathrin; Freytag, Matthias; Jones, P. G.; Hörner, Gerald; René, Frank; Chem. Sci.  (2017) –; doi:10.1039/C7SC02238G

data_1546448
_publ_section_title
;
 Completing the series of boron-nucleophilic cyanoborates: Boryl anions of
 type (NHC)&#x2212;B(CN)2&#x2212;
;
_journal_name_full               'Chem. Sci.'
_journal_paper_doi               10.1039/C7SC02238G
_journal_year                    2017
_chemical_formula_sum            'C14 H19 B N4 Sn'
_chemical_formula_weight         372.83
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2016/6
_audit_update_record
;
2017-05-17 deposited with the CCDC.
2017-07-03 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90.555(1)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   11.0134(1)
_cell_length_b                   21.1517(2)
_cell_length_c                   13.8999(1)
_cell_measurement_reflns_used    24495
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      30.8900
_cell_measurement_theta_min      2.4080
_cell_volume                     3237.86(5)
_computing_structure_refinement  'SHELXL-2016/6 (Sheldrick, 2016)'
_diffrn_ambient_environment      N~2~
_diffrn_ambient_temperature      100(2)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 16.1419
_diffrn_detector_type            Eos
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.947
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'Xcalibur, Eos'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0416
_diffrn_reflns_av_unetI/netI     0.0261
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.947
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       30
_diffrn_reflns_limit_k_min       -30
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            91552
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.947
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         31.094
_diffrn_reflns_theta_min         2.420
_diffrn_source                   'fine-focus sealed X-ray tube'
_diffrn_source_type              'Enhance (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    1.573
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.90245
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.38.43 (Rigaku Oxford Diffraction, 2015)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.530
_exptl_crystal_description       block
_exptl_crystal_F_000             1488
_exptl_crystal_size_max          0.400
_exptl_crystal_size_mid          0.100
_exptl_crystal_size_min          0.100
_refine_diff_density_max         0.568
_refine_diff_density_min         -0.640
_refine_diff_density_rms         0.086
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.102
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     371
_refine_ls_number_reflns         9835
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.102
_refine_ls_R_factor_all          0.0342
_refine_ls_R_factor_gt           0.0263
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0151P)^2^+2.2831P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0497
_refine_ls_wR_factor_ref         0.0520
_reflns_Friedel_coverage         0.000
_reflns_number_gt                8615
_reflns_number_total             9835
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c7sc02238g2.cif
_cod_data_source_block           rf20rf
_cod_database_code               1546448
_shelx_shelxl_version_number     2016/6
_shelx_estimated_absorpt_t_min   0.572
_shelx_estimated_absorpt_t_max   0.859
_oxdiff_exptl_absorpt_empirical_full_min 0.901
_oxdiff_exptl_absorpt_empirical_full_max 1.120
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
;
_shelx_res_checksum              58640