Group 13 BN dehydrocoupling reagents, similar to transition metal catalysts but with unique reactivity
Hansmann, Max M.; Melen, Rebecca L.; Wright, Dominic S.; Chemical Science 2 (2011) 1554–; doi:10.1039/c1sc00154j

data_1515605
_publ_section_title
;
 Group 13 BN dehydrocoupling reagents, similar to transition metal
 catalysts but with unique reactivity
;
_journal_issue                   8
_journal_name_full               'Chemical Science'
_journal_page_first              1554
_journal_paper_doi               10.1039/c1sc00154j
_journal_volume                  2
_journal_year                    2011
_chemical_absolute_configuration
;
4423 Friedel pairs averaged for the refinement
;
_chemical_formula_moiety         'C12 H36 B3 N3'
_chemical_formula_sum            'C12 H36 B3 N3'
_chemical_formula_weight         254.87
_space_group_IT_number           170
_symmetry_cell_setting           hexagonal
_symmetry_space_group_name_Hall  'P 65'
_symmetry_space_group_name_H-M   'P 65'
_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                120.00
_cell_formula_units_Z            24
_cell_length_a                   19.5895(6)
_cell_length_b                   19.5895(6)
_cell_length_c                   31.1522(8)
_cell_measurement_reflns_used    262529
_cell_measurement_temperature    260(2)
_cell_measurement_theta_max      26.02
_cell_measurement_theta_min      1.00
_cell_volume                     10353.0(5)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Nonius B.V. 1998)'
_computing_data_reduction
;
HKL Denzo and Scalepack (Otwinowski & Minor 1997)
;
_computing_publication_material  'SHELXL-97 (Sheldrick 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick 1997)'
_computing_structure_solution    'SIR-92 (Altomare et al. 1994)'
_diffrn_ambient_temperature      260(2)
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  'Nonius Kappa CCD'
_diffrn_measurement_method       'Thin slice \w and \f scans'
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0555
_diffrn_reflns_av_sigmaI/netI    0.0551
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -23
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -38
_diffrn_reflns_number            41471
_diffrn_reflns_theta_full        26.02
_diffrn_reflns_theta_max         26.02
_diffrn_reflns_theta_min         3.55
_exptl_absorpt_coefficient_mu    0.055
_exptl_absorpt_correction_T_max  0.998
_exptl_absorpt_correction_T_min  0.846
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
multi-scan from symmetry-related measurements
Sortav (Blessing 1995)
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    0.981
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             3456
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.545
_refine_diff_density_min         -0.368
_refine_diff_density_rms         0.070
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   1(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.429
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     688
_refine_ls_number_reflns         6857
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.429
_refine_ls_R_factor_all          0.1696
_refine_ls_R_factor_gt           0.1236
_refine_ls_shift/su_max          0.005
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.2000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.3639
_refine_ls_wR_factor_ref         0.3858
_reflns_number_gt                4171
_reflns_number_total             6857
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c1sc00154j.txt
_cod_data_source_block           dw1116
_cod_original_sg_symbol_H-M      P6(5)
_cod_database_code               1515605