Rare-Earth Metal Alkyl, Amido, and Cyclopentadienyl Complexes Supported by Imidazolin-2-iminato Ligands: Synthesis, Structural Characterization, and Catalytic Application
Alexandra G. Trambitas; Tarun K. Panda; Jelena Jenter; Peter W. Roesky; Constantin Daniliuc; Cristian G. Hrib; Peter G. Jones; Matthias Tamm; Inorganic Chemistry 49 (2010) 2435–2446; doi:10.1021/ic9024052

data_4315087
_publ_contact_author
;
        Peter G. Jones
        Institut f\"ur Anorganische und Analytische Chemie
        Technische Universit\"at Braunschweig
        Postfach 3329
        38023 Braunschweig
        Germany
;
_publ_contact_author_email       p.jones@tu-bs.de
_publ_contact_author_fax         '049 531 391-5387'
_publ_contact_author_phone       '049 531 391-5382'
_publ_section_title
;
 Rare-Earth Metal Alkyl, Amido, and Cyclopentadienyl Complexes Supported
 by Imidazolin-2-iminato Ligands: Synthesis, Structural Characterization,
 and Catalytic Application
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              2435
_journal_page_last               2446
_journal_paper_doi               10.1021/ic9024052
_journal_volume                  49
_journal_year                    2010
_chemical_formula_sum            'C43 H74 Gd N3 O2 Si2'
_chemical_formula_weight         878.48
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           33
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2n'
_symmetry_space_group_name_H-M   'P n a 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   19.5496(2)
_cell_length_b                   13.3110(2)
_cell_length_c                   18.0652(2)
_cell_measurement_reflns_used    40912
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      30.8485
_cell_measurement_theta_min      2.0786
_cell_volume                     4701.01(10)
_computing_cell_refinement
; 
CrysAlis RED, Oxford Diffraction Ltd., 
Version 1.171.33.32 (release 27-01-2009 CrysAlis171 .NET) 
(compiled Jan 27 2009,14:17:37) 
;
_computing_data_collection
; 
CrysAlis CCD, Oxford Diffraction Ltd., 
Version 1.171.33.32 (release 27-01-2009 CrysAlis171 .NET) 
(compiled Jan 27 2009,14:17:37) 
;
_computing_data_reduction
; 
CrysAlis RED, Oxford Diffraction Ltd., 
Version 1.171.33.32 (release 27-01-2009 CrysAlis171 .NET) 
(compiled Jan 27 2009,14:17:37) 
;
_computing_molecular_graphics    'BRUKER XP'
_computing_publication_material  SHELXL-97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 16.1419
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Goniometer KM4/Xcalibur, detector: Eos'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Enhance (Mo) X-ray Source'
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0649
_diffrn_reflns_av_sigmaI/netI    0.0693
_diffrn_reflns_limit_h_max       27
_diffrn_reflns_limit_h_min       -27
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            160663
_diffrn_reflns_theta_full        29.57
_diffrn_reflns_theta_max         29.57
_diffrn_reflns_theta_min         2.08
_exptl_absorpt_coefficient_mu    1.496
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.99166
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
CrysAlis RED, Oxford Diffraction Ltd., 
Version 1.171.33.32 (release 27-01-2009 CrysAlis171 .NET) 
(compiled Jan 27 2009,14:17:37) 
;
_exptl_crystal_colour            'pale yellow'
_exptl_crystal_density_diffrn    1.241
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1844
_exptl_crystal_size_max          0.12
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.987
_refine_diff_density_min         -0.564
_refine_diff_density_rms         0.060
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.483(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.782
_refine_ls_hydrogen_treatment    'methyls rigid and other riding'
_refine_ls_matrix_type           full
_refine_ls_number_parameters     475
_refine_ls_number_reflns         13135
_refine_ls_number_restraints     376
_refine_ls_restrained_S_all      0.794
_refine_ls_R_factor_all          0.0385
_refine_ls_R_factor_gt           0.0212
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0096P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0297
_refine_ls_wR_factor_ref         0.0308
_reflns_number_gt                9519
_reflns_number_total             13135
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic9024052_si_002_04.cif
_cod_data_source_block           altr28
_cod_database_code               4315087