Synthesis, Reactivity, and Structure of Mixed-Ligand Ytterbium Complexes Supported by β-Diketiminate
Yao, Yingming; Zhang, Yong; Shen, Qi; Yu, Kaibei; Organometallics 21 (2002) 819–; doi:10.1021/om010803a

data_4076643
_publ_section_title
;
 Synthesis, Reactivity, and Structure of Mixed-Ligand Ytterbium Complexes
 Supported by \b-Diketiminate
;
_journal_issue                   5
_journal_name_full               Organometallics
_journal_page_first              819
_journal_paper_doi               10.1021/om010803a
_journal_volume                  21
_journal_year                    2002
_chemical_formula_sum            'C65.5 H94 Cl4 N4 O Yb2'
_chemical_formula_weight         1441.33
_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                 98.710(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   19.951(4)
_cell_length_b                   13.918(2)
_cell_length_c                   24.257(5)
_cell_measurement_reflns_used    28
_cell_measurement_temperature    299(2)
_cell_measurement_theta_max      16.27
_cell_measurement_theta_min      2.57
_cell_volume                     6658(2)
_computing_cell_refinement       'Siemens XSCANS'
_computing_data_collection       'Siemens XSCANS'
_computing_data_reduction        'Siemens SHELXTL'
_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      299(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Siemens P4'
_diffrn_measurement_method       '\w 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  0.0338
_diffrn_reflns_av_sigmaI/netI    0.1163
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            13060
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.69
_diffrn_standards_decay_%        2.57
_diffrn_standards_interval_count 97
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    2.994
_exptl_absorpt_correction_T_max  0.5854
_exptl_absorpt_correction_T_min  0.4336
_exptl_absorpt_correction_type   empirical
_exptl_crystal_colour            violet
_exptl_crystal_density_diffrn    1.438
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             2924
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.32
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.532
_refine_diff_density_min         -0.612
_refine_diff_density_rms         0.105
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.790
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     715
_refine_ls_number_reflns         11734
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      0.790
_refine_ls_R_factor_all          0.0915
_refine_ls_R_factor_gt           0.0405
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0153P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0561
_refine_ls_wR_factor_ref         0.0639
_reflns_number_gt                6754
_reflns_number_total             11734
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om010803a.cif
_cod_data_source_block           complex2
_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:

'_refine_ls_hydrogen_treatment' value 'constra' was replaced with the
value 'constr' as specified in the replacement file
'src/cod-tools/trunk/data/replacement-values/replacement_values.lst'.

Automatic conversion script
Id: cif_fix_values 5376 2017-05-30 11:51:03Z andrius 
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_original_formula_sum        'C65.50 H94 Cl4 N4 O Yb2'
_cod_database_code               4076643