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_7705686
_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            'C82 H70 N2 O2 Sm'
_chemical_formula_weight         1265.75
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2020-08-11 deposited with the CCDC.	2020-09-21 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 104.497(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   13.7407(11)
_cell_length_b                   18.7955(17)
_cell_length_c                   24.607(2)
_cell_measurement_reflns_used    9876
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.86
_cell_measurement_theta_min      2.78
_cell_volume                     6152.7(9)
_computing_data_collection       APEX3
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.998
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1032
_diffrn_reflns_av_unetI/netI     0.0866
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            75305
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.484
_diffrn_reflns_theta_min         2.214
_exptl_absorpt_coefficient_mu    1.007
_exptl_absorpt_correction_T_max  0.8748
_exptl_absorpt_correction_T_min  0.6748
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS-2016/2
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    1.366
_exptl_crystal_description       plate
_exptl_crystal_F_000             2616
_exptl_crystal_size_max          0.340
_exptl_crystal_size_mid          0.140
_exptl_crystal_size_min          0.060
_refine_diff_density_max         1.818
_refine_diff_density_min         -1.469
_refine_diff_density_rms         0.127
_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     788
_refine_ls_number_reflns         14093
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.030
_refine_ls_R_factor_all          0.0938
_refine_ls_R_factor_gt           0.0544
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0211P)^2^+17.3239P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0858
_refine_ls_wR_factor_ref         0.0952
_reflns_Friedel_coverage         0.000
_reflns_number_gt                10074
_reflns_number_total             14093
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d0dt02963g2.cif
_cod_data_source_block           smbianph1
_cod_depositor_comments
'Adding full bibliography for 7705684--7705686.cif.'
_cod_original_cell_volume        6152.8(9)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7705686
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.726
_shelx_estimated_absorpt_t_max   0.942
_shelx_res_checksum              45890