Synthesis, Structure, and Reactivity of Organolanthanide Carboranyl Compounds and Lanthanacarboranes Derived from a Versatile Ligand, Me2C(C5H5)(C2B10H11)
Chui, Kwoli; Yang, Qingchuan; Mak, Thomas C. W.; Xie, Zuowei; Organometallics 19 (2000) 1391–; doi:10.1021/om990941o

data_4077705
_publ_section_title
;
 Synthesis, Structure, and Reactivity of Organolanthanide Carboranyl
 Compounds and Lanthanacarboranes Derived from a Versatile Ligand,
 Me2C(C5H5)(C2B10H11)
;
_journal_issue                   7
_journal_name_full               Organometallics
_journal_page_first              1391
_journal_paper_doi               10.1021/om990941o
_journal_volume                  19
_journal_year                    2000
_chemical_formula_sum            'C32 H70 B20 Li O6 Yb'
_chemical_formula_weight         947.06
_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   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 92.62(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.910(2)
_cell_length_b                   28.006(6)
_cell_length_c                   17.547(4)
_cell_measurement_temperature    293(2)
_cell_volume                     4864.9(18)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.447
_diffrn_measured_fraction_theta_max 0.447
_diffrn_measurement_device_type  'IP Rikuga'
_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  0.0331
_diffrn_reflns_av_sigmaI/netI    0.0579
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       32
_diffrn_reflns_limit_k_min       -32
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            7614
_diffrn_reflns_theta_full        25.55
_diffrn_reflns_theta_max         25.55
_diffrn_reflns_theta_min         1.45
_exptl_absorpt_coefficient_mu    1.960
_exptl_absorpt_correction_T_max  1.133
_exptl_absorpt_correction_T_min  0.922
_exptl_absorpt_correction_type   abscor
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.293
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1932
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.26
_exptl_crystal_size_min          0.22
_refine_diff_density_max         0.540
_refine_diff_density_min         -0.946
_refine_diff_density_rms         0.078
_refine_ls_extinction_coef       0.00156(7)
_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   0.926
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     542
_refine_ls_number_reflns         4069
_refine_ls_number_restraints     84
_refine_ls_restrained_S_all      1.105
_refine_ls_R_factor_all          0.0440
_refine_ls_R_factor_gt           0.0392
_refine_ls_shift/su_max          0.690
_refine_ls_shift/su_mean         0.034
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0799P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1030
_refine_ls_wR_factor_ref         0.1070
_reflns_number_gt                3845
_reflns_number_total             4069
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om990941o.cif
_cod_data_source_block           compound_7
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'MONOCLINIC' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_cell_volume        4864.8(17)
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               4077705