Synthesis, Structure, and Bonding of d0/fn Metallacarboranes Incorporating the η7-Carboranyl Ligand
Kwoli Chui; Qingchuan Yang; Thomas C. W. Mak; Wai Han Lam; Zhenyang Lin; Zuowei Xie; Journal of the American Chemical Society 122 (2000) 5758–5764; doi:10.1021/ja000188m

data_4116047
_publ_section_title
;
 Synthesis, Structure, and Bonding of d0/fn Metallacarboranes
 Incorporating the \h7-Carboranyl Ligand
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              5758
_journal_page_last               5764
_journal_paper_doi               10.1021/ja000188m
_journal_volume                  122
_journal_year                    2000
_chemical_formula_sum            'C36 H64 B10 Er Li O5'
_chemical_formula_weight         859.17
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 103.95(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   16.742(3)
_cell_length_b                   14.225(3)
_cell_length_c                   18.483(4)
_cell_measurement_temperature    293(2)
_cell_volume                     4272.0(16)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.875
_diffrn_measured_fraction_theta_max 0.875
_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  0.0000
_diffrn_reflns_av_sigmaI/netI    0.0610
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            6571
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.47
_exptl_absorpt_coefficient_mu    2.002
_exptl_absorpt_correction_type   empirical
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.336
_exptl_crystal_description       prism
_exptl_crystal_F_000             1764
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.26
_exptl_crystal_size_min          0.24
_refine_diff_density_max         0.704
_refine_diff_density_min         -0.700
_refine_diff_density_rms         0.110
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.077
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     518
_refine_ls_number_reflns         6571
_refine_ls_number_restraints     10
_refine_ls_restrained_S_all      1.078
_refine_ls_R_factor_all          0.0556
_refine_ls_R_factor_gt           0.0483
_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^)+(0.0851P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1237
_refine_ls_wR_factor_ref         0.1286
_reflns_number_gt                6007
_reflns_number_total             6571
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja000188m_6.cif
_cod_data_source_block           6
_cod_original_cell_volume        4272.0(15)
_cod_database_code               4116047