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_7049278
_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         'C26 H53 N4 Si3 Yb'
_chemical_formula_sum            'C26 H53 N4 Si3 Yb'
_chemical_formula_weight         679.03
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -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                93.672(3)
_cell_angle_beta                 105.014(3)
_cell_angle_gamma                92.303(3)
_cell_formula_units_Z            2
_cell_length_a                   10.477(3)
_cell_length_b                   12.806(4)
_cell_length_c                   13.939(4)
_cell_measurement_reflns_used    3949
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      20.62
_cell_measurement_theta_min      2.29
_cell_volume                     1799.5(9)
_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(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.991
_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  0.1655
_diffrn_reflns_av_unetI/netI     0.1442
_diffrn_reflns_Laue_measured_fraction_full 0.992
_diffrn_reflns_Laue_measured_fraction_max 0.991
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            18060
_diffrn_reflns_point_group_measured_fraction_full 0.992
_diffrn_reflns_point_group_measured_fraction_max 0.991
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.497
_diffrn_reflns_theta_min         1.517
_exptl_absorpt_coefficient_mu    2.716
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            red
_exptl_crystal_colour_primary    red
_exptl_crystal_density_diffrn    1.253
_exptl_crystal_description       block
_exptl_crystal_F_000             698
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.21
_exptl_crystal_size_min          0.2
_refine_diff_density_max         1.633
_refine_diff_density_min         -1.286
_refine_diff_density_rms         0.154
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.009
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     308
_refine_ls_number_reflns         6652
_refine_ls_number_restraints     471
_refine_ls_restrained_S_all      1.015
_refine_ls_R_factor_all          0.1294
_refine_ls_R_factor_gt           0.0805
_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^)+(0.0926P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1831
_refine_ls_wR_factor_ref         0.2082
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4018
_reflns_number_total             6652
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9dt00507b2.cif
_cod_data_source_block           3a
_cod_depositor_comments
'Adding full bibliography for 7049263--7049284.cif.'
_cod_database_code               7049278
_shelx_shelxl_version_number     2018/1
_shelx_estimated_absorpt_t_max   0.613
_shelx_estimated_absorpt_t_min   0.574
_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
 C3-C4
 2.5 with sigma of 0.02
3. Rigid bond restraints
 Si1, C4
 with sigma for 1-2 distances of 0.001 and sigma for 1-3 distances of 0.002
 Si3, C10
 with sigma for 1-2 distances of 0.001 and sigma for 1-3 distances of 0.002
 Si1, C2
 with sigma for 1-2 distances of 0.001 and sigma for 1-3 distances of 0.002
 Si1, C3
 with sigma for 1-2 distances of 0.001 and sigma for 1-3 distances of 0.002
 Si2, C5
 with sigma for 1-2 distances of 0.001 and sigma for 1-3 distances of 0.002
 Si2, C6
 with sigma for 1-2 distances of 0.001 and sigma for 1-3 distances of 0.002
 Si2, C7
 with sigma for 1-2 distances of 0.001 and sigma for 1-3 distances of 0.002
 Si2, C8
 with sigma for 1-2 distances of 0.001 and sigma for 1-3 distances of 0.002
 Si3, C9
 with sigma for 1-2 distances of 0.001 and sigma for 1-3 distances of 0.002
 Si3, C11
 with sigma for 1-2 distances of 0.001 and sigma for 1-3 distances of 0.002
 Si3, C12
 with sigma for 1-2 distances of 0.001 and sigma for 1-3 distances of 0.002
 N1, C17
 with sigma for 1-2 distances of 0.001 and sigma for 1-3 distances of 0.002
 N4, C25
 with sigma for 1-2 distances of 0.001 and sigma for 1-3 distances of 0.002
 C16, C17
 with sigma for 1-2 distances of 0.001 and sigma for 1-3 distances of 0.002
4. Uiso/Uaniso restraints and constraints
C20 \\sim C21 \\sim C22 \\sim C23 \\sim C24 \\sim 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 C25
\\sim C26: within 3.8A with sigma of 0.01 and sigma for terminal atoms of 0.02
Uanis(Si1) \\sim Ueq, Uanis(C1) \\sim Ueq, Uanis(C2) \\sim Ueq, Uanis(C3) \\sim
Ueq, Uanis(C4) \\sim Ueq: with sigma of 0.02 and sigma for terminal atoms of
0.04
Uanis(Si2) \\sim Ueq, Uanis(C5) \\sim Ueq, Uanis(C6) \\sim Ueq, Uanis(C7) \\sim
Ueq, Uanis(C8) \\sim Ueq: with sigma of 0.02 and sigma for terminal atoms of
0.04
Uanis(Si3) \\sim Ueq, Uanis(C9) \\sim Ueq, Uanis(C10) \\sim Ueq, Uanis(C11)
\\sim Ueq, Uanis(C12) \\sim Ueq: with sigma of 0.02 and sigma for terminal
atoms of 0.04
Uanis(C3) \\sim Ueq, Uanis(C4) \\sim Ueq, Uanis(C10) \\sim Ueq, Uanis(C12)
\\sim Ueq: with sigma of 0.02 and sigma for terminal atoms of 0.04
5.a Secondary CH2 refined with riding coordinates:
 C1(H1A,H1B), C5(H5A,H5B), C9(H9A,H9B)
5.b Aromatic/amide H refined with riding coordinates:
 C20(H20), C21(H21), C23(H23), C24(H24), C13(H13), C14(H14), C16(H16), C17(H17)
5.c Fitted hexagon refined as free rotating group:
 N3(C20,C21,C22,C23,C24)
5.d Idealised Me refined as rotating group:
 C2(H2A,H2B,H2C), C3(H3A,H3B,H3C), C4(H4A,H4B,H4C), C6(H6A,H6B,H6C), C7(H7A,
 H7B,H7C), C8(H8A,H8B,H8C), C10(H10A,H10B,H10C), C11(H11A,H11B,H11C), C12(H12A,
 H12B,H12C), C18(H18A,H18B,H18C), C19(H19A,H19B,H19C), C25(H25A,H25B,H25C),
 C26(H26A,H26B,H26C)
;
_shelx_res_checksum              55347
_shelx_fab_checksum              92581
_olex2_submission_special_instructions 'No special instructions were received'