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_7049269
_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         'C66 H98 Er2 N4 O6 Si2'
_chemical_formula_sum            'C66 H98 Er2 N4 O6 Si2'
_chemical_formula_weight         1434.18
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 97.1660(10)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   11.8031(10)
_cell_length_b                   17.2359(15)
_cell_length_c                   17.5507(15)
_cell_measurement_reflns_used    9879
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.31
_cell_measurement_theta_min      2.30
_cell_volume                     3542.6(5)
_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 0.999
_diffrn_measured_fraction_theta_max 0.987
_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  0.1276
_diffrn_reflns_av_unetI/netI     0.0688
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.987
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            39319
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.987
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.551
_diffrn_reflns_theta_min         1.662
_exptl_absorpt_coefficient_mu    2.434
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.345
_exptl_crystal_description       block
_exptl_crystal_F_000             1468
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.18
_refine_diff_density_max         1.984
_refine_diff_density_min         -1.138
_refine_diff_density_rms         0.131
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.064
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     368
_refine_ls_number_reflns         8081
_refine_ls_number_restraints     804
_refine_ls_restrained_S_all      1.106
_refine_ls_R_factor_all          0.0740
_refine_ls_R_factor_gt           0.0504
_refine_ls_shift/su_max          0.005
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0639P)^2^+4.0342P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1241
_refine_ls_wR_factor_ref         0.1363
_reflns_Friedel_coverage         0.000
_reflns_number_gt                5901
_reflns_number_total             8081
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9dt00507b2.cif
_cod_data_source_block           1d
_cod_depositor_comments
'Adding full bibliography for 7049263--7049284.cif.'
_cod_database_code               7049269
_shelx_shelxl_version_number     2018/1
_shelx_estimated_absorpt_t_max   0.668
_shelx_estimated_absorpt_t_min   0.604
_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. Uiso/Uaniso restraints and constraints
C10 \\sim C15 \\sim C11 \\sim C14 \\sim C13 \\sim C12 \\sim C22 \\sim C3 \\sim
C8 \\sim C9 \\sim C1 \\sim C4 \\sim C26 \\sim C30 \\sim C29 \\sim C7 \\sim C19
\\sim C5 \\sim C33 \\sim C6 \\sim C16 \\sim C20 \\sim C21 \\sim C31 \\sim C17
\\sim C18 \\sim C32 \\sim C28 \\sim C27 \\sim C24 \\sim C25 \\sim C23 \\sim C2:
within 3.8A with sigma of 0.01 and sigma for terminal atoms of 0.02
Uanis(Si1) \\sim Ueq, Uanis(C22) \\sim Ueq, Uanis(C3) \\sim Ueq, Uanis(C8)
\\sim Ueq, Uanis(C9) \\sim Ueq, Uanis(C1) \\sim Ueq, Uanis(C4) \\sim Ueq,
Uanis(C26) \\sim Ueq, Uanis(C30) \\sim Ueq, Uanis(C29) \\sim Ueq, Uanis(C7)
\\sim Ueq, Uanis(C19) \\sim Ueq, Uanis(C5) \\sim Ueq, Uanis(C33) \\sim Ueq,
Uanis(C6) \\sim Ueq, Uanis(C16) \\sim Ueq, Uanis(C20) \\sim Ueq, Uanis(C21)
\\sim Ueq, Uanis(C31) \\sim Ueq, Uanis(C17) \\sim Ueq, Uanis(C18) \\sim Ueq,
Uanis(C32) \\sim Ueq, Uanis(C28) \\sim Ueq, Uanis(C27) \\sim Ueq, Uanis(C24)
\\sim Ueq, Uanis(C25) \\sim Ueq: with sigma of 0.02 and sigma for terminal
atoms of 0.04
Uanis(O2) \\sim Ueq, Uanis(C26) \\sim Ueq, Uanis(C30) \\sim Ueq, Uanis(C29)
\\sim Ueq: with sigma of 0.02 and sigma for terminal atoms of 0.04
3.a Ternary CH refined with riding coordinates:
 C19(H19), C16(H16)
3.b Secondary CH2 refined with riding coordinates:
 C22(H22A,H22B), C26(H26A,H26B), C30(H30A,H30B), C29(H29A,H29B), C33(H33A,
 H33B), C31(H31A,H31B), C32(H32A,H32B), C28(H28A,H28B), C27(H27A,H27B)
3.c Aromatic/amide H refined with riding coordinates:
 C14(H14), C13(H13), C12(H12), C4(H4), C7(H7), C5(H5), C6(H6), C2(H2)
3.d Idealised Me refined as rotating group:
 C20(H20A,H20B,H20C), C21(H21A,H21B,H21C), C17(H17A,H17B,H17C), C18(H18A,H18B,
 H18C), C24(H24A,H24B,H24C), C25(H25A,H25B,H25C), C23(H23A,H23B,H23C)
;
_shelx_res_checksum              59914
_shelx_fab_checksum              85956
_olex2_submission_special_instructions 'No special instructions were received'