A rare case of a zero-field single-ion magnet in a cerium(III) pseudo-icosahedral complex.
Thomas, Jarrod R.; Giansiracusa, Marcus J.; Mifsud, Jonathan T.; Mole, Richard A.; Sulway, Scott A.; Dalton transactions (Cambridge, England : 2003) 54 (2025) 3071–3078; doi:10.1039/d4dt03231d

data_7717836
_publ_section_title
;
 A rare case of a zero-field single-ion magnet in a cerium(III)
 pseudo-icosahedral complex.
;
_journal_issue                   7
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              3071
_journal_page_last               3078
_journal_paper_doi               10.1039/d4dt03231d
_journal_volume                  54
_journal_year                    2025
_chemical_formula_moiety         'C42 H32 B2 La N12 O6, I, 2(C H2 Cl2)'
_chemical_formula_sum            'C44 H36 B2 Cl4 I La N12 O6'
_chemical_formula_weight         1258.08
_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
_audit_creation_date             2023-10-18
_audit_creation_method
;
Olex2 1.3
(compiled 2020.11.12 svn.r5f609507 for OlexSys, GUI svn.r6408)
;
_audit_update_record
;
2024-11-04 deposited with the CCDC.	2025-01-08 downloaded from the CCDC.
;
_cell_angle_alpha                72.060(3)
_cell_angle_beta                 69.769(3)
_cell_angle_gamma                63.382(2)
_cell_formula_units_Z            1
_cell_length_a                   11.1211(8)
_cell_length_b                   11.3355(7)
_cell_length_c                   11.9129(8)
_cell_measurement_reflns_used    9641
_cell_measurement_temperature    100.0
_cell_measurement_theta_max      33.193
_cell_measurement_theta_min      2.310
_cell_volume                     1238.62(15)
_computing_cell_refinement       'SAINT V8.40B (?, 2016)'
_computing_data_reduction        'SAINT V8.40B (?, 2016)'
_computing_molecular_graphics    'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL  (Sheldrick, 2008)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      100.0
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Brucker DQUEST8 CCD'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0570
_diffrn_reflns_av_unetI/netI     0.0296
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            52660
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         30.506
_diffrn_reflns_theta_min         2.044
_diffrn_source_current           1.4
_diffrn_source_power             0.07
_diffrn_source_voltage           50.0
_exptl_absorpt_coefficient_mu    1.761
_exptl_absorpt_correction_T_max  0.7465
_exptl_absorpt_correction_T_min  0.5837
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.1411 before and 0.0873 after correction.
The Ratio of minimum to maximum transmission is 0.7819.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            'clear colourless'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.687
_exptl_crystal_description       plate
_exptl_crystal_F_000             620
_exptl_crystal_size_max          0.5
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.05
_refine_diff_density_max         1.076
_refine_diff_density_min         -1.775
_refine_diff_density_rms         0.133
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.190
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     319
_refine_ls_number_reflns         7540
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.190
_refine_ls_R_factor_all          0.0464
_refine_ls_R_factor_gt           0.0373
_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^)+3.9469P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0802
_refine_ls_wR_factor_ref         0.0885
_reflns_Friedel_coverage         0.000
_reflns_number_gt                6690
_reflns_number_total             7540
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d4dt03231d2.cif
_cod_data_source_block           jtm004_231017_a
_cod_depositor_comments
'Adding full bibliography for 7717834--7717837.cif.'
_cod_database_code               7717836
_shelx_shelxl_version_number     2019/1
_shelx_estimated_absorpt_t_max   0.917
_shelx_estimated_absorpt_t_min   0.473
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All B(H) groups, All C(H) groups, All C(H,H) groups
2.a Ternary CH refined with riding coordinates:
 B1(H1A)
2.b Secondary CH2 refined with riding coordinates:
 C22(H22A,H22B)
2.c Aromatic/amide H refined with riding coordinates:
 C8(H8), C5(H5), C6(H6), C14(H14), C21(H21), C2(H2), C7(H7), C20(H20), C9(H9),
 C1(H1), C19(H19), C16(H16), C15(H15), C13(H13), C12(H12)
;
_shelx_res_checksum              94847
_shelx_hkl_checksum              36013
_olex2_date_sample_completion    2023-10-17
_olex2_date_sample_data_collection 2023-10-17
_olex2_date_sample_submission    2023-10-17
_olex2_submission_special_instructions 'No special instructions were received'