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_4329399
_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            'C8 H34 B4 Ba N2 O2'
_chemical_formula_weight         370.95
_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                90.00
_cell_angle_beta                 104.108(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.384(3)
_cell_length_b                   17.411(5)
_cell_length_c                   10.679(3)
_cell_measurement_temperature    193(2)
_cell_volume                     1872.5(9)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      193(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_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  0.0390
_diffrn_reflns_av_sigmaI/netI    0.0307
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            18872
_diffrn_reflns_theta_full        25.31
_diffrn_reflns_theta_max         25.31
_diffrn_reflns_theta_min         2.02
_exptl_absorpt_coefficient_mu    2.113
_exptl_crystal_density_diffrn    1.316
_exptl_crystal_F_000             752
_refine_diff_density_max         0.800
_refine_diff_density_min         -0.330
_refine_diff_density_rms         0.048
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.891
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     290
_refine_ls_number_reflns         3414
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.891
_refine_ls_R_factor_all          0.0231
_refine_ls_R_factor_gt           0.0155
_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^)+(0.0135P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0300
_refine_ls_wR_factor_ref         0.0304
_reflns_number_gt                2709
_reflns_number_total             3414
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic2016879_si_002_02.cif
_cod_data_source_block           f06b80f_face
_cod_original_cell_volume        1872.6(9)
_cod_database_code               4329399