Synthesis, Structural Characterization, and Reactivity of Organolanthanide Complexes Derived from a New, Versatile Boron-Bridged Ligand,iPr2NB(C9H7)(C2B10H11)†
Zi, Guofu; Li, Hung-Wing; Xie, Zuowei; Organometallics 21 (2002) 1136–; doi:10.1021/om010973n

data_4076715
_publ_section_title
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 Synthesis, Structural Characterization, and Reactivity of
 Organolanthanide Complexes Derived from a New, Versatile Boron-Bridged
 Ligand,iPr2NB(C9H7)(C2B10H11)&#x2020;
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_journal_issue                   6
_journal_name_full               Organometallics
_journal_page_first              1136
_journal_paper_doi               10.1021/om010973n
_journal_volume                  21
_journal_year                    2002
_chemical_formula_sum            'C50 H92 B22 Li N2 O4 Yb'
_chemical_formula_weight         1203.06
_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                 93.739(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.662(4)
_cell_length_b                   12.708(4)
_cell_length_c                   36.851(11)
_cell_measurement_temperature    293(2)
_cell_volume                     6852(4)
_computing_cell_refinement       'Bruker SMART CCD Diffractometer'
_computing_data_collection       'Bruker SMART CCD Diffractometer'
_computing_data_reduction        'Bruker SMART CCD Diffractometer'
_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 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Bruker SMART CCD Diffractometer'
_diffrn_measurement_method       'omega scan'
_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  0.3287
_diffrn_reflns_av_sigmaI/netI    0.5161
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       39
_diffrn_reflns_limit_l_min       -38
_diffrn_reflns_number            29961
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.46
_exptl_absorpt_coefficient_mu    1.404
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.472
_exptl_absorpt_correction_type   empirical
_exptl_crystal_colour            Green
_exptl_crystal_density_diffrn    1.166
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             2484
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.13
_refine_diff_density_max         1.917
_refine_diff_density_min         -0.940
_refine_diff_density_rms         0.122
_refine_ls_extinction_coef       0.01900(13)
_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   0.793
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     590
_refine_ls_number_reflns         8906
_refine_ls_number_restraints     27
_refine_ls_restrained_S_all      0.792
_refine_ls_R_factor_all          0.2520
_refine_ls_R_factor_gt           0.0836
_refine_ls_shift/su_max          0.205
_refine_ls_shift/su_mean         0.015
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0719P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1688
_refine_ls_wR_factor_ref         0.2213
_reflns_number_gt                2547
_reflns_number_total             8906
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om010973n.cif
_cod_data_source_block           5c
_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 2.4.1 from
2010-06-29.

'_exptl_absorpt_correction_type' value 'Empirical'
changed to 'empirical' 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        6852(3)
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               4076715