Di and trinuclear rare-earth metal complexes supported by 3-amido appended indolyl ligands: synthesis, characterization and catalytic activity towards isoprene 1,4-cis polymerization.
Zhang, Guangchao; Deng, Baojia; Wang, Shaowu; Wei, Yun; Zhou, Shuangliu; Zhu, Xiancui; Huang, Zeming; Mu, Xiaolong; Dalton transactions (Cambridge, England : 2003) 45 (2016) 15445–; doi:10.1039/c6dt02922a

data_7040450
_publ_section_title
;
 Di and trinuclear rare-earth metal complexes supported by 3-amido
 appended indolyl ligands: synthesis, characterization and catalytic
 activity towards isoprene 1,4-cis polymerization.
;
_journal_issue                   39
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              15445
_journal_paper_doi               10.1039/c6dt02922a
_journal_volume                  45
_journal_year                    2016
_chemical_formula_sum            'C62 H110 Gd2 N4 O4 Si4'
_chemical_formula_weight         1402.40
_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
_audit_update_record
;
2016-04-25 deposited with the CCDC.
2016-08-23 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 115.666(8)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   17.006(3)
_cell_length_b                   15.194(3)
_cell_length_c                   31.049(5)
_cell_measurement_reflns_used    9810
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      25.11
_cell_measurement_theta_min      2.22
_cell_volume                     7231(2)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.981
_diffrn_measured_fraction_theta_max 0.981
_diffrn_measurement_device_type  CCD
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0691
_diffrn_reflns_av_sigmaI/netI    0.0554
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       39
_diffrn_reflns_limit_l_min       -39
_diffrn_reflns_number            80089
_diffrn_reflns_theta_full        27.37
_diffrn_reflns_theta_max         27.37
_diffrn_reflns_theta_min         1.33
_exptl_absorpt_coefficient_mu    1.927
_exptl_absorpt_correction_T_max  0.7230
_exptl_absorpt_correction_T_min  0.6766
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.288
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2904
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.956
_refine_diff_density_min         -0.946
_refine_diff_density_rms         0.096
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.017
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     870
_refine_ls_number_reflns         16101
_refine_ls_number_restraints     737
_refine_ls_restrained_S_all      1.034
_refine_ls_R_factor_all          0.0857
_refine_ls_R_factor_gt           0.0467
_refine_ls_shift/su_max          0.083
_refine_ls_shift/su_mean         0.004
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0659P)^2^+4.6877P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1161
_refine_ls_wR_factor_ref         0.1367
_reflns_number_gt                10442
_reflns_number_total             16101
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c6dt02922a2.cif
_cod_data_source_block           7
_cod_depositor_comments
'Adding full bibliography for 7040444--7040455.cif.'
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               7040450