Homopolar Dihydrogen Bonding in Alkali Metal Amidoboranes: Crystal Engineering of Low-Dimensional Molecular Materials
David J. Wolstenholme; Jenna Flogeras; Franklin N. Che; Andreas Decken; G. Sean McGrady; Journal of the American Chemical Society 135 (2013) 2439–2442; doi:10.1021/ja311778k

data_4119361
_publ_contact_author_address
;Department of Chemistry
University of New Brunswick
Fredericton, NB
E3B 5A3
Canada
;
_publ_contact_author_email       adecken@unb.ca
_publ_contact_author_fax         '(506) 453-4981'
_publ_contact_author_name        'Andreas Decken'
_publ_contact_author_phone       '(506) 453-4875'
_publ_section_title
;
 Homopolar Dihydrogen Bonding in Alkali Metal Amidoboranes: Crystal
 Engineering of Low-Dimensional Molecular Materials
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              2439
_journal_page_last               2442
_journal_paper_doi               10.1021/ja311778k
_journal_volume                  135
_journal_year                    2013
_chemical_formula_moiety         'C4 H18 B2 Li2 N2'
_chemical_formula_sum            'C4 H18 B2 Li2 N2'
_chemical_formula_weight         129.70
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 107.110(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.541(3)
_cell_length_b                   10.544(3)
_cell_length_c                   9.821(3)
_cell_measurement_reflns_used    1939
_cell_measurement_temperature    188(1)
_cell_measurement_theta_max      26.996
_cell_measurement_theta_min      2.796
_cell_volume                     1043.2(5)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'Bruker SHELXTL (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      188(1)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.970
_diffrn_measurement_device_type  'Bruker AXS SMART1000/P4'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0383
_diffrn_reflns_av_sigmaI/netI    0.0474
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            7041
_diffrn_reflns_theta_full        25.25
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         2.02
_diffrn_source                   'fine-focus sealed tube'
_diffrn_source_type              K760
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.044
_exptl_absorpt_correction_T_max  0.9945
_exptl_absorpt_correction_T_min  0.9838
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2008)'
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    0.826
_exptl_crystal_description       Irregular
_exptl_crystal_F_000             288
_exptl_crystal_recrystallization_method 'THF '
_exptl_crystal_size_max          0.375
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.197
_refine_diff_density_min         -0.111
_refine_diff_density_rms         0.034
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.037
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     163
_refine_ls_number_reflns         2330
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.037
_refine_ls_R_factor_all          0.1159
_refine_ls_R_factor_gt           0.0492
_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^)+(0.0525P)^2^+0.2169P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1088
_refine_ls_wR_factor_ref         0.1484
_reflns_number_gt                1242
_reflns_number_total             2330
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja311778k_si_003.cif
_cod_data_source_block           sg110601
_cod_original_cell_volume        1043.3(5)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4119361