Chalcogen chemistry of group(IV) closo-dodecaborates, synthesis, theory and coordination chemistry.
Dimmer, Jörg-Alexander; Hornung, Martin; Weigend, Florian; Wesemann, Lars; Dalton transactions (Cambridge, England : 2003) 39 (2010) 7504–7512; doi:10.1039/c003042b

data_7025741
_publ_section_title
;
 Chalcogen chemistry of group(IV) closo-dodecaborates, synthesis, theory
 and coordination chemistry.
;
_journal_issue                   32
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              7504
_journal_page_last               7512
_journal_paper_doi               10.1039/c003042b
_journal_volume                  39
_journal_year                    2010
_chemical_formula_moiety         '2(C8 H20 N), B11 Ge H11 Se, C2 H3 N'
_chemical_formula_sum            'C18 H54 B11 Ge N3 Se'
_chemical_formula_weight         583.14
_chemical_name_systematic
;
?
;
_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   calculated
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 97.115(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.1594(5)
_cell_length_b                   14.6085(9)
_cell_length_c                   21.6075(13)
_cell_measurement_reflns_used    29811
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      59.27
_cell_measurement_theta_min      4.31
_cell_volume                     3182.2(3)
_computing_cell_refinement       x-Area
_computing_data_collection       x-Area
_computing_data_reduction        x-Area
_computing_molecular_graphics    'ortep for windows'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.988
_diffrn_measurement_device_type  'Stoe IPDS 2T'
_diffrn_measurement_method       '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  0.1246
_diffrn_reflns_av_sigmaI/netI    0.0525
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            40249
_diffrn_reflns_theta_full        25.35
_diffrn_reflns_theta_max         25.35
_diffrn_reflns_theta_min         5.67
_exptl_absorpt_coefficient_mu    2.120
_exptl_absorpt_correction_T_max  0.7981
_exptl_absorpt_correction_T_min  0.5759
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'x-red, x-shape'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.217
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1216
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.14
_refine_diff_density_max         0.316
_refine_diff_density_min         -0.675
_refine_diff_density_rms         0.069
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.188
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     308
_refine_ls_number_reflns         5768
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.188
_refine_ls_R_factor_all          0.0471
_refine_ls_R_factor_gt           0.0421
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0279P)^2^+1.9131P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0884
_refine_ls_wR_factor_ref         0.0906
_reflns_number_gt                5303
_reflns_number_total             5768
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c003042b.txt
_cod_data_source_block           jd90
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_original_formula_sum        'C18 H54 B11 Ge1 N3 Se1'
_cod_database_code               7025741