Low-coordinate Sm(II) and Yb(II) complexes derived from sterically-hindered 1,2-bis(imino)acenaphthene (Ar<sup>BIG</sup>-bian).
Lukina, Daria A.; Skatova, Alexandra A.; Sokolov, Vladimir G.; Baranov, Evgenii V.; Demeshko, Serhiy; Ketkov, Sergey Yu; Fedushkin, Igor L.; Dalton transactions (Cambridge, England : 2003) 49 (2020) 14445–14451; doi:10.1039/d0dt02963g

data_7705685
_publ_section_title
;
 Low-coordinate Sm(II) and Yb(II) complexes derived from
 sterically-hindered 1,2-bis(imino)acenaphthene (Ar<sup>BIG</sup>-bian).
;
_journal_issue                   41
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              14445
_journal_page_last               14451
_journal_paper_doi               10.1039/d0dt02963g
_journal_volume                  49
_journal_year                    2020
_chemical_formula_sum            'C99.5 H90 N2 O2 Yb'
_chemical_formula_weight         1518.77
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2016/6
_audit_update_record
;
2020-08-11 deposited with the CCDC.	2020-09-21 downloaded from the CCDC.
;
_cell_angle_alpha                87.8870(10)
_cell_angle_beta                 74.1140(10)
_cell_angle_gamma                67.0670(10)
_cell_formula_units_Z            2
_cell_length_a                   12.9233(4)
_cell_length_b                   14.4027(5)
_cell_length_c                   22.7605(7)
_cell_measurement_reflns_used    9849
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      30.56
_cell_measurement_theta_min      2.23
_cell_volume                     3740.9(2)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX3'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2016/6 (Sheldrick, 2016)'
_computing_structure_solution    'SHELXT 2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker D8 Quest CMOS'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0214
_diffrn_reflns_av_unetI/netI     0.0303
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            39323
_diffrn_reflns_point_group_measured_fraction_full 0.997
_diffrn_reflns_point_group_measured_fraction_max 0.997
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.000
_diffrn_reflns_theta_min         2.324
_diffrn_source                   'microfocus sealed tube'
_exptl_absorpt_coefficient_mu    1.305
_exptl_absorpt_correction_T_max  0.7461
_exptl_absorpt_correction_T_min  0.6487
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS 2016/2 (Bruker AXS Inc.)'
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    1.348
_exptl_crystal_description       prism
_exptl_crystal_F_000             1574
_exptl_crystal_size_max          0.350
_exptl_crystal_size_mid          0.290
_exptl_crystal_size_min          0.270
_refine_diff_density_max         0.868
_refine_diff_density_min         -0.705
_refine_diff_density_rms         0.071
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.047
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1048
_refine_ls_number_reflns         17959
_refine_ls_number_restraints     173
_refine_ls_restrained_S_all      1.052
_refine_ls_R_factor_all          0.0301
_refine_ls_R_factor_gt           0.0255
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0305P)^2^+1.9098P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0595
_refine_ls_wR_factor_ref         0.0608
_reflns_Friedel_coverage         0.000
_reflns_number_gt                16446
_reflns_number_total             17959
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d0dt02963g2.cif
_cod_data_source_block           ybarbianm
_cod_depositor_comments
'Adding full bibliography for 7705684--7705686.cif.'
_cod_original_formula_sum        'C99.50 H90 N2 O2 Yb'
_cod_database_code               7705685
_shelx_shelxl_version_number     2016/6
_shelx_estimated_absorpt_t_min   0.658
_shelx_estimated_absorpt_t_max   0.720
_shelx_res_checksum              21543