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_7053651
_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            'C25 H37 B F2 N2'
_chemical_formula_weight         414.38
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90
_cell_angle_beta                 101.4026(18)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   10.9370(13)
_cell_length_b                   11.0234(10)
_cell_length_c                   20.180(2)
_cell_measurement_reflns_used    7368
_cell_measurement_temperature    163.1500
_cell_measurement_theta_max      27.4835
_cell_measurement_theta_min      3.0677
_cell_volume                     2384.9(4)
_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      163(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  0.0263
_diffrn_reflns_av_sigmaI/netI    0.0225
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            14829
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         3.12
_exptl_absorpt_coefficient_mu    0.077
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.154
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             896
_exptl_crystal_size_max          0.60
_exptl_crystal_size_mid          0.55
_exptl_crystal_size_min          0.55
_refine_diff_density_max         0.155
_refine_diff_density_min         -0.176
_refine_diff_density_rms         0.036
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.117
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     279
_refine_ls_number_reflns         4067
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.117
_refine_ls_R_factor_all          0.0495
_refine_ls_R_factor_gt           0.0449
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0457P)^2^+0.6285P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1024
_refine_ls_wR_factor_ref         0.1053
_reflns_number_gt                3751
_reflns_number_total             4067
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c0nj00363h.txt
_cod_data_source_block           4-iPr
_cod_depositor_comments
;
The following automatic conversions were performed:

'_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      P21/n
_cod_database_code               7053651