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_4078808
_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            'C44 H64 Cl2 Li N4 O3 Y'
_chemical_formula_weight         863.74
_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                80.150(4)
_cell_angle_beta                 71.462(3)
_cell_angle_gamma                66.438(3)
_cell_formula_units_Z            2
_cell_length_a                   12.7626(19)
_cell_length_b                   13.559(2)
_cell_length_c                   14.789(2)
_cell_measurement_reflns_used    900
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      30
_cell_measurement_theta_min      2
_cell_volume                     2221.3(6)
_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, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_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  0.1633
_diffrn_reflns_av_sigmaI/netI    0.2677
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            19195
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         2.14
_exptl_absorpt_coefficient_mu    1.475
_exptl_absorpt_correction_T_max  0.9299
_exptl_absorpt_correction_T_min  0.5566
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2008a)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.291
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             912
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.770
_refine_diff_density_min         -0.752
_refine_diff_density_rms         0.107
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.866
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     506
_refine_ls_number_reflns         8673
_refine_ls_number_restraints     12
_refine_ls_restrained_S_all      0.870
_refine_ls_R_factor_all          0.2126
_refine_ls_R_factor_gt           0.0796
_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^)+(0.0619P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1369
_refine_ls_wR_factor_ref         0.1663
_reflns_number_gt                3634
_reflns_number_total             8673
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om3004306_si_001.cif
_cod_data_source_block           ybisamclm
_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 2.4.2 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      P-1
_cod_database_code               4078808