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_7018063
_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         'C84 H68 B2 N4 Sn4, 4(C4 H8 O)'
_chemical_formula_sum            'C100 H100 B2 N4 O4 Sn4'
_chemical_formula_weight         1918.22
_chemical_name_systematic
;
?
;
_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                95.346(3)
_cell_angle_beta                 118.325(2)
_cell_angle_gamma                94.865(3)
_cell_formula_units_Z            1
_cell_length_a                   13.3291(5)
_cell_length_b                   13.4745(9)
_cell_length_c                   13.7149(5)
_cell_measurement_reflns_used    9944
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      25.77
_cell_measurement_theta_min      2.46
_cell_volume                     2135.36(19)
_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 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Bruker Apex II kappa 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  0.0583
_diffrn_reflns_av_sigmaI/netI    0.0439
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            41781
_diffrn_reflns_theta_full        25.77
_diffrn_reflns_theta_max         25.77
_diffrn_reflns_theta_min         2.46
_exptl_absorpt_coefficient_mu    1.212
_exptl_absorpt_correction_T_max  0.7453
_exptl_absorpt_correction_T_min  0.6639
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS V2008/1'
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.492
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             970
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.05
_refine_diff_density_max         2.332
_refine_diff_density_min         -1.483
_refine_diff_density_rms         0.168
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.132
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     514
_refine_ls_number_reflns         8141
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.132
_refine_ls_R_factor_all          0.0710
_refine_ls_R_factor_gt           0.0540
_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^)+(0.0510P)^2^+21.0103P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1365
_refine_ls_wR_factor_ref         0.1454
_reflns_number_gt                6525
_reflns_number_total             8141
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2dt11936f.txt
_cod_data_source_block           7
_cod_original_cell_volume        2135.36(18)
_cod_original_sg_symbol_Hall     -P1
_cod_database_code               7018063