Synthesis and Structural Diversity of Barium (N,N-Dimethylamino)diboranates
Scott R. Daly; Brian J. Bellott; Mark A. Nesbit; Gregory S. Girolami; Inorganic Chemistry 51 (2012) 6449–6459; doi:10.1021/ic2016879

data_4329402
_publ_section_title
;
 Synthesis and Structural Diversity of Barium
 (N,N-Dimethylamino)diboranates
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              6449
_journal_page_last               6459
_journal_paper_doi               10.1021/ic2016879
_journal_volume                  51
_journal_year                    2012
_chemical_formula_sum            'C24 H64 B4 Ba N2 O8'
_chemical_formula_weight         689.35
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           62
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2n'
_symmetry_space_group_name_H-M   'P n m a'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.1886(8)
_cell_length_b                   24.5226(17)
_cell_length_c                   14.6894(10)
_cell_measurement_reflns_used    9907
_cell_measurement_temperature    193(2)
_cell_measurement_theta_max      25.48
_cell_measurement_theta_min      2.43
_cell_volume                     3670.2(5)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      193(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.2185
_diffrn_reflns_av_sigmaI/netI    0.0693
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       31
_diffrn_reflns_limit_k_min       -31
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            66258
_diffrn_reflns_theta_full        27.19
_diffrn_reflns_theta_max         27.19
_diffrn_reflns_theta_min         1.62
_exptl_absorpt_coefficient_mu    1.122
_exptl_absorpt_correction_T_max  0.9119
_exptl_absorpt_correction_T_min  0.7058
_exptl_absorpt_correction_type   integration
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.248
_exptl_crystal_description       plate
_exptl_crystal_F_000             1448
_exptl_crystal_size_max          0.428
_exptl_crystal_size_mid          0.401
_exptl_crystal_size_min          0.116
_refine_diff_density_max         0.794
_refine_diff_density_min         -0.974
_refine_diff_density_rms         0.089
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.047
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     238
_refine_ls_number_reflns         4150
_refine_ls_number_restraints     8
_refine_ls_restrained_S_all      1.077
_refine_ls_R_factor_all          0.0945
_refine_ls_R_factor_gt           0.0455
_refine_ls_shift/su_max          0.006
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0500P)^2^+3.2500P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1225
_refine_ls_wR_factor_ref         0.1448
_reflns_number_gt                2003
_reflns_number_total             4150
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic2016879_si_002_05.cif
_cod_data_source_block           fa17lface
_cod_database_code               4329402