9-H-9-Borafluorene dimethyl sulfide adduct: a product of a unique ring-contraction reaction and a useful hydroboration reagent
Animesh Das; Alexander Hubner; Mitra Weber; Michael Bolte; Hans-Wolfram Lerner; Matthias Wagner; Chem.Commun. 47 (2011) 11339–; doi:10.1039/c1cc14888e

data_7106948
_publ_section_title
;
 9-H-9-Borafluorene dimethyl sulfide adduct: a product of a unique
 ring-contraction reaction and a useful hydroboration reagent
;
_journal_name_full               Chem.Commun.
_journal_page_first              11339
_journal_paper_doi               10.1039/c1cc14888e
_journal_volume                  47
_journal_year                    2011
_chemical_formula_moiety         'C20 H34 B2 Li2 O2'
_chemical_formula_sum            'C20 H34 B2 Li2 O2'
_chemical_formula_weight         341.97
_chemical_name_systematic        ?
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 92.907(19)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.229(3)
_cell_length_b                   12.210(2)
_cell_length_c                   15.985(4)
_cell_measurement_reflns_used    3185
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      25.8
_cell_measurement_theta_min      3.5
_cell_volume                     2188.8(9)
_computing_cell_refinement       'X-Area (Stoe & Cie, 2001)'
_computing_data_collection       'X-Area (Stoe & Cie, 2001)'
_computing_data_reduction        'X-Area (Stoe & Cie, 2001)'
_computing_molecular_graphics    'XP (Sheldrick, 2008)'
_computing_publication_material  SHELXL97
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008) '
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008) '
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'STOE IPDS II two-circle-diffractometer'
_diffrn_measurement_method       \w
_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  0.0731
_diffrn_reflns_av_sigmaI/netI    0.0819
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            6821
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.02
_diffrn_reflns_theta_min         3.48
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.061
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.038
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             744
_exptl_crystal_size_max          0.33
_exptl_crystal_size_mid          0.17
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.318
_refine_diff_density_min         -0.296
_refine_diff_density_rms         0.083
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.059
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     133
_refine_ls_number_reflns         1930
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.059
_refine_ls_R_factor_all          0.1393
_refine_ls_R_factor_gt           0.1046
_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^)+(0.1515P)^2^+5.3867P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2866
_refine_ls_wR_factor_ref         0.3036
_reflns_number_gt                1230
_reflns_number_total             1930
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            c1cc14888e.txt
_cod_data_source_block           wa1220
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               7106948