Synthesis and Structural Characterization of Constrained-Geometry Organolanthanide Chlorides and Alkyls Incorporating the Ligand [η5:σ-(C9H6)C2B10H10]2−
Shen, Hao; Chan, Hoi-Shan; Xie, Zuowei; Organometallics 27 (2008) 5309–; doi:10.1021/om8006344

data_4072170
_publ_section_title
;
 Synthesis and Structural Characterization of Constrained-Geometry
 Organolanthanide Chlorides and Alkyls Incorporating the Ligand
 [\h5:\s-(C9H6)C2B10H10]2&#x2212;
;
_journal_issue                   20
_journal_name_full               Organometallics
_journal_page_first              5309
_journal_paper_doi               10.1021/om8006344
_journal_volume                  27
_journal_year                    2008
_chemical_formula_sum            'C50 H88 B20 K La O7'
_chemical_formula_weight         1195.41
_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                69.65(3)
_cell_angle_beta                 84.14(3)
_cell_angle_gamma                82.15(3)
_cell_formula_units_Z            2
_cell_length_a                   10.950(2)
_cell_length_b                   17.141(3)
_cell_length_c                   20.219(4)
_cell_measurement_temperature    293(2)
_cell_volume                     3518.7(13)
_computing_cell_refinement       'BIOTEX RIGAKU'
_computing_data_collection       'RAXIS-IIC 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-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.731
_diffrn_measured_fraction_theta_max 0.731
_diffrn_measurement_device_type  'RAXIS-IIC RIGAKU'
_diffrn_measurement_method       IP
_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    0.0974
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       0
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            9275
_diffrn_reflns_theta_full        25.22
_diffrn_reflns_theta_max         25.22
_diffrn_reflns_theta_min         1.08
_exptl_absorpt_coefficient_mu    0.707
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.7188
_exptl_absorpt_correction_type   ABSCOR
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.128
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1240
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.916
_refine_diff_density_min         -0.711
_refine_diff_density_rms         0.102
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.073
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     712
_refine_ls_number_reflns         9275
_refine_ls_number_restraints     39
_refine_ls_restrained_S_all      1.073
_refine_ls_R_factor_all          0.1065
_refine_ls_R_factor_gt           0.0917
_refine_ls_shift/su_max          0.092
_refine_ls_shift/su_mean         0.005
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1806P)^2^+1.0954P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2508
_refine_ls_wR_factor_ref         0.2745
_reflns_number_gt                7773
_reflns_number_total             9275
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om8006344_si_001.cif
_cod_data_source_block           2
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_cell_volume        3518.7(12)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4072170