Synthesis, Structure, and Diverse Catalytic Activities of [Ethylenebis(indenyl)]lanthanide(III) Amides on N−H and C−H Addition to Carbodiimides andɛ-Caprolactone Polymerization
Zhou, Shuangliu; Wang, Shaowu; Yang, Gaosheng; Li, Qinghai; Zhang, Lijun; Yao, Zijian; Zhou, Zhangkai; Song, Hai-bin; Organometallics 26 (2007) 3755–; doi:10.1021/om070234s

data_4073309
_publ_section_title
;
 Synthesis, Structure, and Diverse Catalytic Activities of
 [Ethylenebis(indenyl)]lanthanide(III) Amides on N&#x2212;H and C&#x2212;H
 Addition to Carbodiimides and&#x025B;-Caprolactone Polymerization
;
_journal_issue                   15
_journal_name_full               Organometallics
_journal_page_first              3755
_journal_paper_doi               10.1021/om070234s
_journal_volume                  26
_journal_year                    2007
_chemical_formula_moiety         'C26 H34 N Si2 Y'
_chemical_formula_sum            'C26 H34 N Si2 Y'
_chemical_formula_weight         505.63
_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                 91.923(8)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   10.548(6)
_cell_length_b                   21.289(11)
_cell_length_c                   23.140(12)
_cell_measurement_reflns_used    8280
_cell_measurement_temperature    113(2)
_cell_measurement_theta_max      27.9
_cell_measurement_theta_min      1.8
_cell_volume                     5193(5)
_computing_cell_refinement       CrystalClear
_computing_data_collection       CrystalClear
_computing_data_reduction        CrystalClear
_computing_publication_material  'CrystalStructure 3.7.0'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      113(2)
_diffrn_detector_area_resol_mean 7.31
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Rigaku Saturn'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  confocal
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71070
_diffrn_reflns_av_R_equivalents  0.1088
_diffrn_reflns_av_sigmaI/netI    0.1042
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            41851
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         1.30
_exptl_absorpt_coefficient_mu    2.351
_exptl_absorpt_correction_T_max  0.6507
_exptl_absorpt_correction_T_min  0.5801
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Jacobson, R. (1998) Private communication'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.293
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             2112
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.801
_refine_diff_density_min         -0.878
_refine_diff_density_rms         0.103
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.071
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     623
_refine_ls_number_reflns         10170
_refine_ls_number_restraints     109
_refine_ls_restrained_S_all      1.074
_refine_ls_R_factor_all          0.1043
_refine_ls_R_factor_gt           0.0655
_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^)+(0.0647P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1339
_refine_ls_wR_factor_ref         0.1533
_reflns_number_gt                7285
_reflns_number_total             10170
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om070234s-file002.cif
_cod_data_source_block           1
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               4073309