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_4077702
_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            'C28 H58 B20 Cl O2 Sm'
_chemical_formula_weight         828.74
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL
_cell_angle_alpha                90.00
_cell_angle_beta                 91.740(5)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   7.6700(4)
_cell_length_b                   23.433(2)
_cell_length_c                   11.5220(9)
_cell_measurement_temperature    296(2)
_cell_volume                     2069.9(3)
_computing_cell_refinement       'BIOTEX Rigaku'
_computing_data_collection       'RAXIS Rigaku'
_computing_data_reduction        'BIOTEX Rigaku'
_computing_molecular_graphics    'Siemens SHELXTL'
_computing_publication_material  'Siemens SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measurement_device       'IP Rigaku'
_diffrn_measurement_method       IP
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'rotation anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0000
_diffrn_reflns_av_sigmaI/netI    0.0697
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       28
_diffrn_reflns_limit_k_min       -28
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            6494
_diffrn_reflns_theta_max         25.54
_diffrn_reflns_theta_min         2.48
_exptl_absorpt_coefficient_mu    1.511
_exptl_absorpt_correction_T_max  1.099
_exptl_absorpt_correction_T_min  0.837
_exptl_absorpt_correction_type   abscor
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.330
_exptl_crystal_density_meas      ?
_exptl_crystal_description       prism
_exptl_crystal_F_000             842
_exptl_crystal_size_max          0.41
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.788
_refine_diff_density_min         -1.188
_refine_diff_density_rms         0.095
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.451(12)
_refine_ls_extinction_coef       0.0000(4)
_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_all   0.997
_refine_ls_goodness_of_fit_obs   0.997
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     471
_refine_ls_number_reflns         6478
_refine_ls_number_restraints     61
_refine_ls_restrained_S_all      1.032
_refine_ls_restrained_S_obs      0.993
_refine_ls_R_factor_all          0.0553
_refine_ls_R_factor_obs          0.0532
_refine_ls_shift/esd_max         -0.873
_refine_ls_shift/esd_mean        0.028
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.1148P)^2^+0.3089P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.1603
_refine_ls_wR_factor_obs         0.1520
_reflns_number_observed          6299
_reflns_number_total             6494
_reflns_observed_criterion       >2sigma(I)
_cod_data_source_file            om990941o.cif
_cod_data_source_block           compound_4
_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 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 

The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.1148P)^2^+0.3089P] where P=(Fo^2^+2Fc^2^)/3' was
changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to
'w=1/[\s^2^(Fo^2^)+(0.1148P)^2^+0.3089P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_sg_symbol_H-M      P2(1)
_cod_database_code               4077702