A Novel Carbons-Adjacentarachno-C2B10Carborane Tetraanion Bearing both Hexagonal and Pentagonal Bonding Faces
Zi, Guofu; Li, Hung-Wing; Xie, Zuowei; Organometallics 20 (2001) 3836–; doi:10.1021/om0105324

data_4077400
_publ_section_title
;
 A Novel Carbons-Adjacentarachno-C2B10Carborane Tetraanion Bearing both
 Hexagonal and Pentagonal Bonding Faces
;
_journal_issue                   18
_journal_name_full               Organometallics
_journal_page_first              3836
_journal_paper_doi               10.1021/om0105324
_journal_volume                  20
_journal_year                    2001
_chemical_formula_sum            'C30 H60 B10 Li4 O6'
_chemical_formula_weight         652.64
_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                69.766(5)
_cell_angle_beta                 79.778(6)
_cell_angle_gamma                86.327(7)
_cell_formula_units_Z            2
_cell_length_a                   11.429(3)
_cell_length_b                   12.784(3)
_cell_length_c                   14.486(4)
_cell_measurement_temperature    293(2)
_cell_volume                     1954.4(9)
_computing_cell_refinement       'Bruker Smart CCD'
_computing_data_collection       'Bruker Smart CCD'
_computing_data_reduction        'Bruker Smart CCD'
_computing_molecular_graphics    'Siemens SHELXTL'
_computing_publication_material  'Siemens SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker Smart CCD'
_diffrn_measurement_method       omega
_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  0.0385
_diffrn_reflns_av_sigmaI/netI    0.0917
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            9748
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.52
_exptl_absorpt_coefficient_mu    0.067
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.8367
_exptl_absorpt_correction_type   sadabs
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.109
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             700
_exptl_crystal_size_max          0.44
_exptl_crystal_size_mid          0.42
_exptl_crystal_size_min          0.38
_refine_diff_density_max         0.330
_refine_diff_density_min         -0.228
_refine_diff_density_rms         0.048
_refine_ls_extinction_coef       0.0000(16)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   0.959
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     491
_refine_ls_number_reflns         6105
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.959
_refine_ls_R_factor_all          0.1515
_refine_ls_R_factor_gt           0.0765
_refine_ls_shift/su_max          0.592
_refine_ls_shift/su_mean         0.004
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1392P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2023
_refine_ls_wR_factor_ref         0.2518
_reflns_number_gt                2882
_reflns_number_total             6105
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om0105324.cif
_cod_data_source_block           compound_3
_cod_original_cell_volume        1954.4(8)
_cod_original_sg_symbol_H-M      P(-1)
_cod_database_code               4077400