Diborane(4) compounds with bidentate diamino groups.
Xie, Xiaochen; Haddow, Mairi F.; Mansell, Stephen M.; Norman, Nicholas C.; Russell, Christopher A.; Dalton transactions (Cambridge, England : 2003) 41 (2012) 2140–2147; doi:10.1039/c2dt11936f

data_7018058
_publ_section_title
;
 Diborane(4) compounds with bidentate diamino groups.
;
_journal_issue                   7
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              2140
_journal_page_last               2147
_journal_paper_doi               10.1039/c2dt11936f
_journal_volume                  41
_journal_year                    2012
_chemical_formula_moiety         'C16 H32 Cl2 Li2 O4, C12 H12 B2 N4'
_chemical_formula_sum            'C28 H44 B2 Cl2 Li2 N4 O4'
_chemical_formula_weight         607.07
_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                108.594(2)
_cell_angle_beta                 105.241(2)
_cell_angle_gamma                102.205(2)
_cell_formula_units_Z            1
_cell_length_a                   8.6702(3)
_cell_length_b                   9.7473(3)
_cell_length_c                   10.6975(3)
_cell_measurement_reflns_used    7268
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      32.76
_cell_measurement_theta_min      3.55
_cell_volume                     782.46(5)
_computing_cell_refinement       'Bruker Apex II'
_computing_data_collection       'Bruker Apex II'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker ShelXTL'
_computing_publication_material  'Bruker ShelXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.982
_diffrn_measured_fraction_theta_max 0.982
_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  0.0381
_diffrn_reflns_av_sigmaI/netI    0.0404
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            23240
_diffrn_reflns_theta_full        32.80
_diffrn_reflns_theta_max         32.80
_diffrn_reflns_theta_min         2.86
_exptl_absorpt_coefficient_mu    0.247
_exptl_absorpt_correction_T_max  0.7465
_exptl_absorpt_correction_T_min  0.6498
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS-2008/1 - Bruker AXS'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.288
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             322
_exptl_crystal_size_max          0.07
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.480
_refine_diff_density_min         -0.273
_refine_diff_density_rms         0.073
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.037
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     190
_refine_ls_number_reflns         5698
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.037
_refine_ls_R_factor_all          0.0633
_refine_ls_R_factor_gt           0.0436
_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^)+(0.0688P)^2^+0.1240P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1111
_refine_ls_wR_factor_ref         0.1217
_reflns_number_gt                4456
_reflns_number_total             5698
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2dt11936f.txt
_cod_data_source_block           2bthf
_cod_original_cell_volume        782.46(4)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7018058