High-Temperature Reactivity of the Strongly Electrophilic Pristine 9H-9-Borafluorene
Hübner, Alexander; Diehl, Andreas M.; Bolte, Michael; Lerner, Hans-Wolfram; Wagner, Matthias; Organometallics 32 (2013) 6827–; doi:10.1021/om4005737

data_4081812
_publ_section_title
;
 High-Temperature Reactivity of the Strongly Electrophilic Pristine
 9H-9-Borafluorene
;
_journal_issue                   22
_journal_name_full               Organometallics
_journal_page_first              6827
_journal_paper_doi               10.1021/om4005737
_journal_volume                  32
_journal_year                    2013
_chemical_formula_moiety         'C36 H24 B2'
_chemical_formula_sum            'C36 H24 B2'
_chemical_formula_weight         478.17
_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                 104.653(12)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   17.689(2)
_cell_length_b                   18.302(2)
_cell_length_c                   8.0223(13)
_cell_measurement_reflns_used    5883
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      24.8
_cell_measurement_theta_min      3.3
_cell_volume                     2512.7(6)
_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 0.998
_diffrn_measured_fraction_theta_max 0.998
_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  0.1067
_diffrn_reflns_av_sigmaI/netI    0.1212
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            12096
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.02
_diffrn_reflns_theta_min         3.26
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.070
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.264
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1000
_exptl_crystal_size_max          0.27
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.13
_refine_diff_density_max         0.333
_refine_diff_density_min         -0.247
_refine_diff_density_rms         0.065
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.907
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     172
_refine_ls_number_reflns         2224
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.907
_refine_ls_R_factor_all          0.1128
_refine_ls_R_factor_gt           0.0677
_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^)+(0.0872P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1538
_refine_ls_wR_factor_ref         0.1752
_reflns_number_gt                1297
_reflns_number_total             2224
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            om4005737_si_002.cif
_cod_data_source_block           wa1277
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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      C2/c
_cod_database_code               4081812