Reduction of base-stabilized difluoroboranes to induce rearrangement reactions
Yamashita, Makoto; Aramaki, Yoshitaka; Nozaki, Kyoko; New Journal of Chemistry 34 (2010) 1774–; doi:10.1039/c0nj00363h

data_7053653
_publ_section_title
;
 Reduction of base-stabilized difluoroboranes to induce rearrangement
 reactions
;
_journal_issue                   8
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              1774
_journal_paper_doi               10.1039/c0nj00363h
_journal_volume                  34
_journal_year                    2010
_chemical_formula_sum            'C23 H31 B N2'
_chemical_formula_weight         346.31
_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                89.733(3)
_cell_angle_beta                 107.726(6)
_cell_angle_gamma                103.128(7)
_cell_formula_units_Z            2
_cell_length_a                   9.440(5)
_cell_length_b                   10.504(5)
_cell_length_c                   10.892(5)
_cell_measurement_reflns_used    3077
_cell_measurement_temperature    103.1500
_cell_measurement_theta_max      27.4835
_cell_measurement_theta_min      3.4124
_cell_volume                     999.4(8)
_computing_cell_refinement       'RIGAKU CrystalClear'
_computing_data_collection       'RIGAKU CrystalClear'
_computing_data_reduction        'RIGAKU CrystalClear'
_computing_molecular_graphics    ORTEP-III
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    SIR-97
_diffrn_ambient_temperature      103(2)
_diffrn_detector_area_resol_mean 7.31
_diffrn_measured_fraction_theta_full 0.970
_diffrn_measured_fraction_theta_max 0.970
_diffrn_measurement_device_type  'RIGAKU/MSC Meacury CCD'
_diffrn_measurement_method       'omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71070
_diffrn_reflns_av_R_equivalents  0.0147
_diffrn_reflns_av_sigmaI/netI    0.0232
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            6464
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         3.41
_exptl_absorpt_coefficient_mu    0.066
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.151
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             376
_exptl_crystal_size_max          0.60
_exptl_crystal_size_mid          0.45
_exptl_crystal_size_min          0.35
_refine_diff_density_max         0.198
_refine_diff_density_min         -0.187
_refine_diff_density_rms         0.035
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.069
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     239
_refine_ls_number_reflns         3415
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.069
_refine_ls_R_factor_all          0.0471
_refine_ls_R_factor_gt           0.0401
_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^)+(0.0397P)^2^+0.3266P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0923
_refine_ls_wR_factor_ref         0.0968
_reflns_number_gt                2980
_reflns_number_total             3415
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c0nj00363h.txt
_cod_data_source_block           13-pyr
_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 2.4.2 from
2011-04-26.

'_exptl_absorpt_correction_type' value 'None' changed to
'none' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7053653