Main-Chain Boron-Containing Oligophenylenes via Ring-Opening Polymerization of 9-H-9-Borafluorene
Alexander Hübner; Zheng-Wang Qu; Ulli Englert; Michael Bolte; Hans-Wolfram Lerner; Max C. Holthausen; Matthias Wagner; Journal of the American Chemical Society 133 (2011) 4596–4609; doi:10.1021/ja110947k

data_4105829
_publ_contact_author
;
      Dr. Michael Bolte
      Institut f\"ur Anorganische Chemie
      J. W. Goethe-Universit\"at
      Max-von-Laue-Str. 7 
      60438 Frankfurt/Main
      Germany
;
_publ_contact_author_email       bolte@chemie.uni-frankfurt.de
_publ_contact_author_fax         '49 69 798 29239'
_publ_contact_author_phone       '49 69 798 29136'
_publ_section_title
;
 Main-Chain Boron-Containing Oligophenylenes via Ring-Opening
 Polymerization of 9-H-9-Borafluorene
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              4596
_journal_page_last               4609
_journal_paper_doi               10.1021/ja110947k
_journal_volume                  133
_journal_year                    2011
_chemical_formula_moiety         'C30 H28 B2'
_chemical_formula_sum            'C30 H28 B2'
_chemical_formula_weight         410.14
_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                77.043(8)
_cell_angle_beta                 68.701(8)
_cell_angle_gamma                85.064(8)
_cell_formula_units_Z            2
_cell_length_a                   9.0283(9)
_cell_length_b                   11.5995(11)
_cell_length_c                   12.0150(12)
_cell_measurement_reflns_used    10579
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      25.9
_cell_measurement_theta_min      3.3
_cell_volume                     1142.5(2)
_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 0.985
_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  0.0565
_diffrn_reflns_av_sigmaI/netI    0.0514
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            12693
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.68
_diffrn_reflns_theta_min         3.29
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.066
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.192
_exptl_crystal_description       block
_exptl_crystal_F_000             436
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.28
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.195
_refine_diff_density_min         -0.199
_refine_diff_density_rms         0.044
_refine_ls_extinction_coef       0.032(4)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   0.946
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     311
_refine_ls_number_reflns         4265
_refine_ls_number_restraints     16
_refine_ls_restrained_S_all      0.948
_refine_ls_R_factor_all          0.0702
_refine_ls_R_factor_gt           0.0480
_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^)+(0.0762P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1145
_refine_ls_wR_factor_ref         0.1236
_reflns_number_gt                3062
_reflns_number_total             4265
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ja110947k_si_001_2.cif
_cod_data_source_block           9_wa1132
_cod_original_cell_volume        1142.45(19)
_cod_database_code               4105829