Chloro and Alkyl Rare-Earth Complexes Supported byansa-Bis(amidinate) Ligands with a Rigido-Phenylene Linker. Ligand Steric Bulk: A Means of Stabilization or Destabilization?
Tolpygin, Aleksei O.; Shavyrin, Andrei S.; Cherkasov, Anton V.; Fukin, Georgy K.; Trifonov, Alexander A.; Organometallics 31 (2012) 5405–; doi:10.1021/om3004306

data_4078813
_publ_section_title
;
 Chloro and Alkyl Rare-Earth Complexes Supported byansa-Bis(amidinate)
 Ligands with a Rigido-Phenylene Linker. Ligand Steric Bulk: A Means of
 Stabilization or Destabilization?
;
_journal_issue                   15
_journal_name_full               Organometallics
_journal_page_first              5405
_journal_paper_doi               10.1021/om3004306
_journal_volume                  31
_journal_year                    2012
_chemical_formula_sum            'C122 H164 N8 O4 Y2'
_chemical_formula_weight         1984.43
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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                 105.7510(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   30.5945(13)
_cell_length_b                   22.7252(10)
_cell_length_c                   33.2068(14)
_cell_measurement_reflns_used    850
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      30
_cell_measurement_theta_min      2
_cell_volume                     22220.6(17)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.1284
_diffrn_reflns_av_sigmaI/netI    0.1648
_diffrn_reflns_limit_h_max       35
_diffrn_reflns_limit_h_min       -38
_diffrn_reflns_limit_k_max       28
_diffrn_reflns_limit_k_min       -28
_diffrn_reflns_limit_l_max       41
_diffrn_reflns_limit_l_min       -32
_diffrn_reflns_number            69252
_diffrn_reflns_theta_full        26.50
_diffrn_reflns_theta_max         26.50
_diffrn_reflns_theta_min         1.13
_exptl_absorpt_coefficient_mu    1.094
_exptl_absorpt_correction_T_max  0.8191
_exptl_absorpt_correction_T_min  0.6053
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 1998)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.186
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             8496
_exptl_crystal_size_max          0.51
_exptl_crystal_size_mid          0.21
_exptl_crystal_size_min          0.19
_refine_diff_density_max         1.134
_refine_diff_density_min         -0.541
_refine_diff_density_rms         0.095
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.006
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1185
_refine_ls_number_reflns         22971
_refine_ls_number_restraints     84
_refine_ls_restrained_S_all      1.015
_refine_ls_R_factor_all          0.1761
_refine_ls_R_factor_gt           0.0778
_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^)+(0.0722P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1555
_refine_ls_wR_factor_ref         0.1784
_reflns_number_gt                11311
_reflns_number_total             22971
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om3004306_si_001.cif
_cod_data_source_block           yam4m
_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 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               4078813