Synthesis, characterization, and reactivity of dinuclear organo-rare-earth-metal alkyl complexes supported by 2-amidate-functionalized indolyl ligands: substituent effects on coordination and reactivity.
Hong, Dongjing; Zhu, Xiancui; Wang, Shaowu; Wei, Yun; Zhou, Shuangliu; Huang, Zeming; Zhu, Shan; Wang, Ruru; Yue, Wenrun; Mu, Xiaolong; Dalton transactions (Cambridge, England : 2003) 48 (2019) 5230–5242; doi:10.1039/c9dt00507b

data_7049279
_publ_section_title
;
 Synthesis, characterization, and reactivity of dinuclear
 organo-rare-earth-metal alkyl complexes supported by
 2-amidate-functionalized indolyl ligands: substituent effects on
 coordination and reactivity.
;
_journal_issue                   16
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              5230
_journal_page_last               5242
_journal_paper_doi               10.1039/c9dt00507b
_journal_volume                  48
_journal_year                    2019
_chemical_formula_moiety         'C62 H90 N4 O6 Si2 Yb2'
_chemical_formula_sum            'C62 H90 N4 O6 Si2 Yb2'
_chemical_formula_weight         1389.63
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_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     dual
_audit_creation_date             2018-03-26
_audit_creation_method
;
Olex2 1.2
(compiled 2017.08.10 svn.r3458 for OlexSys, GUI svn.r5381)
;
_audit_update_record
;
2018-03-27 deposited with the CCDC.    2019-03-07 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 118.311(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   30.273(4)
_cell_length_b                   15.0332(17)
_cell_length_c                   22.541(3)
_cell_measurement_reflns_used    7604
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      23.34
_cell_measurement_theta_min      2.27
_cell_volume                     9031(2)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      293.15
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.980
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1596
_diffrn_reflns_av_unetI/netI     0.1545
_diffrn_reflns_Laue_measured_fraction_full 0.994
_diffrn_reflns_Laue_measured_fraction_max 0.980
_diffrn_reflns_limit_h_max       39
_diffrn_reflns_limit_h_min       -38
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            49016
_diffrn_reflns_point_group_measured_fraction_full 0.994
_diffrn_reflns_point_group_measured_fraction_max 0.980
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.563
_diffrn_reflns_theta_min         1.555
_exptl_absorpt_coefficient_mu    2.120
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.022
_exptl_crystal_description       block
_exptl_crystal_F_000             2824
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.21
_refine_diff_density_max         2.770
_refine_diff_density_min         -1.374
_refine_diff_density_rms         0.122
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.953
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     349
_refine_ls_number_reflns         10228
_refine_ls_number_restraints     691
_refine_ls_restrained_S_all      0.950
_refine_ls_R_factor_all          0.1642
_refine_ls_R_factor_gt           0.0656
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0705P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1273
_refine_ls_wR_factor_ref         0.1610
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4794
_reflns_number_total             10228
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9dt00507b2.cif
_cod_data_source_block           2e
_cod_depositor_comments
'Adding full bibliography for 7049263--7049284.cif.'
_cod_database_code               7049279
_shelx_shelxl_version_number     2018/1
_shelx_estimated_absorpt_t_max   0.664
_shelx_estimated_absorpt_t_min   0.619
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2. Restrained distances
 C25-C26
 1.54 with sigma of 0.01
 C29-C30
 1.54 with sigma of 0.01
3. Rigid bond restraints
 Si1, C23
 with sigma for 1-2 distances of 0.001 and sigma for 1-3 distances of 0.002
 Si1, C21
 with sigma for 1-2 distances of 0.001 and sigma for 1-3 distances of 0.002
 Si1, C22
 with sigma for 1-2 distances of 0.001 and sigma for 1-3 distances of 0.002
 Si1, C20
 with sigma for 1-2 distances of 0.001 and sigma for 1-3 distances of 0.002
 O1, C9
 with sigma for 1-2 distances of 0.001 and sigma for 1-3 distances of 0.002
 O2, C24
 with sigma for 1-2 distances of 0.001 and sigma for 1-3 distances of 0.002
 C11, C16
 with sigma for 1-2 distances of 0.001 and sigma for 1-3 distances of 0.002
 C10, C15
 with sigma for 1-2 distances of 0.01 and sigma for 1-3 distances of 0.02
 C25, C26, C27
 with sigma for 1-2 distances of 0.01 and sigma for 1-3 distances of 0.02
4. Uiso/Uaniso restraints and constraints
C1 \\sim C2 \\sim C3 \\sim C4 \\sim C5 \\sim C6 \\sim C7 \\sim C8 \\sim C9
\\sim C10 \\sim C11 \\sim C12 \\sim C13 \\sim C14 \\sim C15 \\sim C16 \\sim C17
\\sim C18 \\sim C19 \\sim C20 \\sim C21 \\sim C22 \\sim C23 \\sim C24 \\sim C25
\\sim C26 \\sim C27 \\sim C28 \\sim C29 \\sim C30 \\sim C31: within 3.8A with
sigma of 0.01 and sigma for terminal atoms of 0.02
C25 \\sim C26 \\sim C27: within 2A with sigma of 0.01 and sigma for terminal
atoms of 0.02
Uanis(Si1) \\sim Ueq, Uanis(C20) \\sim Ueq, Uanis(C21) \\sim Ueq, Uanis(C22)
\\sim Ueq, Uanis(C23) \\sim Ueq: with sigma of 0.02 and sigma for terminal
atoms of 0.04
Uanis(O2) \\sim Ueq, Uanis(C24) \\sim Ueq, Uanis(C25) \\sim Ueq, Uanis(C26)
\\sim Ueq, Uanis(C27) \\sim Ueq: with sigma of 0.02 and sigma for terminal
atoms of 0.04
Uanis(O3) \\sim Ueq, Uanis(C28) \\sim Ueq, Uanis(C29) \\sim Ueq, Uanis(C30)
\\sim Ueq, Uanis(C31) \\sim Ueq: with sigma of 0.02 and sigma for terminal
atoms of 0.04
5.a Secondary CH2 refined with riding coordinates:
 C20(H20A,H20B), C24(H24A,H24B), C25(H25A,H25B), C26(H26A,H26B), C27(H27A,
 H27B), C28(H28A,H28B), C29(H29A,H29B), C30(H30A,H30B), C31(H31A,H31B)
5.b Aromatic/amide H refined with riding coordinates:
 C2(H2), C4(H4), C5(H5), C6(H6), C7(H7), C12(H12), C13(H13), C14(H14), C15(H15)
5.c Idealised Me refined as rotating group:
 C17(H17A,H17B,H17C), C18(H18A,H18B,H18C), C19(H19A,H19B,H19C), C21(H21A,H21B,
 H21C), C22(H22A,H22B,H22C), C23(H23A,H23B,H23C)
;
_shelx_res_checksum              52263
_shelx_fab_checksum              94828
_olex2_submission_special_instructions 'No special instructions were received'