Synthesis and Reactivity of Mono(pentamethylcyclopentadienyl) Tetraphenylborate Lanthanide Complexes of Ytterbium and Samarium: Tris(ring) Precursors to (C5Me5)Ln Moieties
Evans, William J.; Champagne, Timothy M.; Ziller, Joseph W.; Organometallics 26 (2007) 1204–; doi:10.1021/om060963s

data_4072702
_publ_section_title
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 Synthesis and Reactivity of Mono(pentamethylcyclopentadienyl)
 Tetraphenylborate Lanthanide Complexes of Ytterbium and Samarium:&#x00A0;
 Tris(ring) Precursors to (C5Me5)Ln Moieties
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_journal_issue                   5
_journal_name_full               Organometallics
_journal_page_first              1204
_journal_paper_doi               10.1021/om060963s
_journal_volume                  26
_journal_year                    2007
_chemical_formula_sum            'C43 H44 B Yb'
_chemical_formula_weight         744.63
_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           SHELXTL
_cell_angle_alpha                90.00
_cell_angle_beta                 91.749(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   9.4236(11)
_cell_length_b                   46.204(5)
_cell_length_c                   15.8959(18)
_cell_measurement_temperature    163(2)
_cell_volume                     6918.0(14)
_computing_cell_refinement       'Bruker SMART/SAINT'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'Bruker SHELXTL'
_computing_structure_solution    'Bruker SHELXTL'
_diffrn_ambient_temperature      163(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'normal-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0369
_diffrn_reflns_av_sigmaI/netI    0.0282
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       59
_diffrn_reflns_limit_k_min       -59
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            69104
_diffrn_reflns_theta_full        27.10
_diffrn_reflns_theta_max         27.10
_diffrn_reflns_theta_min         1.56
_diffrn_standards_decay_%        '< 1.0'
_diffrn_standards_interval_count 'initial 50 frames recollected'
_diffrn_standards_number         '50 frames'
_exptl_absorpt_coefficient_mu    2.732
_exptl_absorpt_correction_T_max  0.7911
_exptl_absorpt_correction_T_min  0.4751
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker SADABS'
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.430
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             3016
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.31
_exptl_crystal_size_min          0.09
_refine_diff_density_max         1.631
_refine_diff_density_min         -3.178
_refine_diff_density_rms         0.126
_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     821
_refine_ls_number_reflns         15222
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.281
_refine_ls_R_factor_all          0.0497
_refine_ls_R_factor_gt           0.0415
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0132P)^2^+28.3244P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0813
_refine_ls_wR_factor_ref         0.0841
_reflns_number_gt                13349
_reflns_number_total             15222
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om060963ssi20061020_051416.cif
_cod_data_source_block           tmc25_[624650]
_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.

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 'n/a' 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 
;
_cod_original_cell_volume        6917.9(14)
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               4072702