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_7049283
_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         'C84 H90 N8 O6 Yb2'
_chemical_formula_sum            'C84 H90 N8 O6 Yb2'
_chemical_formula_weight         1653.71
_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                 128.886(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   32.297(7)
_cell_length_b                   14.388(3)
_cell_length_c                   25.203(9)
_cell_measurement_reflns_used    9016
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      25.19
_cell_measurement_theta_min      2.19
_cell_volume                     9116(4)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_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 0.998
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0635
_diffrn_reflns_av_unetI/netI     0.0453
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.994
_diffrn_reflns_limit_h_max       38
_diffrn_reflns_limit_h_min       -38
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            43301
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.994
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.355
_diffrn_reflns_theta_min         1.620
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.087
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.205
_exptl_crystal_description       block
_exptl_crystal_F_000             3352
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.21
_exptl_crystal_size_min          0.2
_refine_diff_density_max         3.127
_refine_diff_density_min         -1.209
_refine_diff_density_rms         0.141
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.027
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     457
_refine_ls_number_reflns         8320
_refine_ls_number_restraints     961
_refine_ls_restrained_S_all      1.032
_refine_ls_R_factor_all          0.0757
_refine_ls_R_factor_gt           0.0555
_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^)+(0.0844P)^2^+67.9736P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1410
_refine_ls_wR_factor_ref         0.1587
_reflns_Friedel_coverage         0.000
_reflns_number_gt                6348
_reflns_number_total             8320
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9dt00507b2.cif
_cod_data_source_block           2ea
_cod_depositor_comments
'Adding full bibliography for 7049263--7049284.cif.'
_cod_database_code               7049283
_shelx_shelxl_version_number     2018/1
_shelx_estimated_absorpt_t_max   0.680
_shelx_estimated_absorpt_t_min   0.645
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups, All N(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2. Rigid bond restraints
 O3, C42
 with sigma for 1-2 distances of 0.001 and sigma for 1-3 distances of 0.002
 N2, C9
 with sigma for 1-2 distances of 0.001 and sigma for 1-3 distances of 0.002
 N2, C10
 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
 C35, C37
 with sigma for 1-2 distances of 0.001 and sigma for 1-3 distances of 0.002
 C35, C38
 with sigma for 1-2 distances of 0.001 and sigma for 1-3 distances of 0.002
 O3, C39
 with sigma for 1-2 distances of 0.001 and sigma for 1-3 distances of 0.002
3. 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 \\sim C32 \\sim C33
\\sim C34 \\sim C35 \\sim C36 \\sim C37 \\sim C38 \\sim C39 \\sim C40 \\sim C41
\\sim C42: within 3.8A with sigma of 0.01 and sigma for terminal atoms of 0.02
Uanis(C35) \\sim Ueq, Uanis(C36) \\sim Ueq, Uanis(C37) \\sim Ueq, Uanis(C38)
\\sim Ueq: with sigma of 0.02 and sigma for terminal atoms of 0.04
Uanis(O3) \\sim Ueq, Uanis(C39) \\sim Ueq, Uanis(C40) \\sim Ueq, Uanis(C41)
\\sim Ueq, Uanis(C42) \\sim Ueq: with sigma of 0.02 and sigma for terminal
atoms of 0.04
4.a Secondary CH2 refined with riding coordinates:
 C39(H39A,H39B), C40(H40A,H40B), C41(H41A,H41B), C42(H42A,H42B)
4.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), C21(H21), C23(H23), C24(H24), C25(H25), C26(H26), C31(H31), C32(H32),
  C33(H33), C34(H34), N4(H4A)
4.c Idealised Me refined as rotating group:
 C17(H17A,H17B,H17C), C18(H18A,H18B,H18C), C19(H19A,H19B,H19C), C36(H36A,H36B,
 H36C), C37(H37A,H37B,H37C), C38(H38A,H38B,H38C)
;
_shelx_res_checksum              84543
_shelx_fab_checksum              11388
_olex2_submission_special_instructions 'No special instructions were received'