A combined theoretical and experimental approach to determine the right choice of co-ligand to impart spin crossover in Fe(II) complexes based on 1,3,4-oxadiazole ligands.
Sundaresan, Sriram; Eppelsheimer, Julian; Gera, Esha; Wiener, Lukas; Carrella, Luca M.; Vignesh, Kuduva R.; Rentschler, Eva; Dalton transactions (Cambridge, England : 2003) 53 (2024) 10303–10317; doi:10.1039/d4dt01141d

data_7716241
_publ_section_title
;
 A combined theoretical and experimental approach to determine the right
 choice of co-ligand to impart spin crossover in Fe(II) complexes based on
 1,3,4-oxadiazole ligands.
;
_journal_issue                   24
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              10303
_journal_page_last               10317
_journal_paper_doi               10.1039/d4dt01141d
_journal_volume                  53
_journal_year                    2024
_chemical_formula_moiety         'C22 H18 Fe N8 O S2, C2 H3 N'
_chemical_formula_sum            'C24 H21 Fe N9 O S2'
_chemical_formula_weight         571.47
_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     iterative
_audit_creation_date             2020-03-04
_audit_creation_method
;
Olex2 1.3-beta
(compiled 2020.02.04 svn.rd84adfe8 for OlexSys, GUI svn.r6020)
;
_audit_update_record
;
2024-04-16 deposited with the CCDC.	2024-05-30 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 141.138(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   15.4394(3)
_cell_length_b                   11.5893(2)
_cell_length_c                   23.9234(4)
_cell_measurement_reflns_used    66928
_cell_measurement_temperature    120
_cell_measurement_theta_max      30.97
_cell_measurement_theta_min      2.10
_cell_volume                     2685.88(14)
_computing_cell_refinement
;
X-Area Recipe 1.34.0.0 (STOE, 2019)
;
_computing_data_collection
;
X-Area Pilatus3_SV 1.31.154.0 (STOE, 2019)
;
_computing_data_reduction
;
X-Area Integrate 1.77.0.0 (STOE, 2019)
X-Area LANA 1.77.1.0 (STOE, 2019)
;
_computing_molecular_graphics    'Olex2 1.3-beta (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.3-beta (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2016/6 (Sheldrick, 2015)'
_computing_structure_solution    'olex2.solve 1.3-beta (Bourhis et al., 2015)'
_diffrn_ambient_temperature      120
_diffrn_detector_area_resol_mean 5.81
_diffrn_detector_type            'DECTRIS PILATUS 100K'
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.919
_diffrn_measurement_details
;
 2894 frames, detector distance = 60 mm
;
_diffrn_measurement_device       'Eulerian 4-circle diffractometer'
_diffrn_measurement_device_type  'STOE STADIVARI'
_diffrn_measurement_method       'rotation method, \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0221
_diffrn_reflns_av_unetI/netI     0.0181
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.919
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -34
_diffrn_reflns_number            48282
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.919
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         30.782
_diffrn_reflns_theta_min         2.102
_exptl_absorpt_coefficient_mu    0.752
_exptl_absorpt_correction_T_max  0.9853
_exptl_absorpt_correction_T_min  0.6395
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
STOE LANA, absorption correction by scaling of reflection intensities.
J. Koziskova, F. Hahn, J. Richter, J. Kozisek, "Comparison of different
absorption corrections on the model structure of tetrakis(\m~2~-acetato)-
diaqua-di-copper(II)", Acta Chimica Slovaca, vol. 9, no. 2, 2016, pp. 136 - 140.
Afterwards a spherical absorption correction was performed within STOE LANA.
;
_exptl_crystal_colour            yellow
_exptl_crystal_colour_primary    yellow
_exptl_crystal_density_diffrn    1.413
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1176
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.093
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.343
_refine_diff_density_min         -0.396
_refine_diff_density_rms         0.047
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.053
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     335
_refine_ls_number_reflns         7725
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.053
_refine_ls_R_factor_all          0.0336
_refine_ls_R_factor_gt           0.0259
_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^)+(0.0441P)^2^+0.1757P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0708
_refine_ls_wR_factor_ref         0.0730
_reflns_Friedel_coverage         0.000
_reflns_number_gt                6373
_reflns_number_total             7725
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d4dt01141d2.cif
_cod_data_source_block           je-234-2
_cod_depositor_comments
'Adding full bibliography for 7716239--7716246.cif.'
_cod_original_cell_volume        2685.90(11)
_cod_database_code               7716241
_shelx_shelxl_version_number     2016/6
_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.a Secondary CH2 refined with riding coordinates:
 C8(H8A,H8B), C9(H9A,H9B), C10(H10A,H10B)
2.b Aromatic/amide H refined with riding coordinates:
 C4(H4), C17(H17), C12(H12), C20(H20), C15(H15), C7(H7), C18(H18), C5(H5),
 C6(H6), C13(H13), C19(H19), C14(H14)
2.c Idealised Me refined as rotating group:
 C24(H24A,H24B,H24C)
;
_shelx_res_checksum              21676
_shelx_hkl_checksum              53939
_olex2_submission_special_instructions 'No special instructions were received'