Synthesis and Structural Characterization of Heteroboroxines with MB2O3 Core (M = Sb, Bi, Sn)
Barbora Mairychová; Tomáš Svoboda; Petr Štěpnička; Aleš Růžička; Remco W. A. Havenith; Mercedes Alonso; Frank De Proft; Roman Jambor; Libor Dostál; Inorganic Chemistry 52 (2013) 1424–1431; doi:10.1021/ic302153s

data_4333683
_publ_section_title
;
 Synthesis and Structural Characterization of Heteroboroxines with MB2O3
 Core (M = Sb, Bi, Sn)
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              1424
_journal_page_last               1431
_journal_paper_doi               10.1021/ic302153s
_journal_volume                  52
_journal_year                    2013
_chemical_formula_moiety         'C24 H29 B2 N2 O3 Sb'
_chemical_formula_sum            'C24 H29 B2 N2 O3 Sb'
_chemical_formula_weight         536.86
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/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
_cell_angle_beta                 113.171(5)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   6.5320(5)
_cell_length_b                   31.944(3)
_cell_length_c                   12.5390(3)
_cell_measurement_reflns_used    23766
_cell_measurement_temperature    150(1)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      1
_cell_volume                     2405.3(3)
_computing_cell_refinement       'COLLECT and DENZO'
_computing_data_collection
'COLLECT (Hooft, 1998) and DENZO (Otwinowski & Minor, 1997)'
_computing_data_reduction        'COLLECT and DENZO'
_computing_molecular_graphics    'PLATON (Spek, 2003)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR92 (Altomare et al., 1994)'
_diffrn_ambient_temperature      150(1)
_diffrn_detector_area_resol_mean 9.091
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  'Bruker Nonius KappaCCD area detector'
_diffrn_measurement_method       '\f and \w scans to fill the Ewald sphere'
_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  0.0498
_diffrn_reflns_av_sigmaI/netI    0.0388
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       40
_diffrn_reflns_limit_k_min       -41
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            23671
_diffrn_reflns_theta_full        27.40
_diffrn_reflns_theta_max         27.40
_diffrn_reflns_theta_min         2.18
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.175
_exptl_absorpt_correction_T_max  0.891
_exptl_absorpt_correction_T_min  0.835
_exptl_absorpt_correction_type   integration
_exptl_absorpt_process_details
;
gaussian integration (Coppens, 1970)
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.483
_exptl_crystal_description       needle
_exptl_crystal_F_000             1088
_exptl_crystal_size_max          0.33
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.391
_refine_diff_density_min         -0.577
_refine_diff_density_rms         0.084
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.087
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     289
_refine_ls_number_reflns         5415
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.087
_refine_ls_R_factor_all          0.0517
_refine_ls_R_factor_gt           0.0332
_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^)+(0.0145P)^2^+2.7234P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0578
_refine_ls_wR_factor_ref         0.0643
_reflns_number_gt                4339
_reflns_number_total             5415
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic302153s_si_002_1.cif
_cod_data_source_block           1a
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4333683