A mononuclear Fe(III) complex showing thermally induced spin crossover and slow magnetic relaxation with reciprocating thermal behaviour.
Bridová, Terézia; Rajnák, Cyril; Titiš, Ján; Samoľová, Erika; Tran, Kevin; Malina, Ondřéj; Bieńko, Alina; Renz, Franz; Gembický, Milan; Boča, Roman; Dalton transactions (Cambridge, England : 2003) 53 (2024) 10824–10828; doi:10.1039/d4dt00642a

data_7716293
_publ_section_title
;
 A mononuclear Fe(III) complex showing thermally induced spin crossover
 and slow magnetic relaxation with reciprocating thermal behaviour.
;
_journal_issue                   26
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              10824
_journal_page_last               10828
_journal_paper_doi               10.1039/d4dt00642a
_journal_volume                  53
_journal_year                    2024
_chemical_formula_moiety         'C24 H29 Fe N4 O4 Se'
_chemical_formula_sum            'C24 H29 Fe N4 O4 Se'
_chemical_formula_weight         572.32
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_date             2024-04-30
_audit_creation_method
;
Olex2 1.5
(compiled 2024.02.16 svn.r378c4104 for OlexSys, GUI svn.r6928)
;
_audit_update_record
;
2024-05-06 deposited with the CCDC.	2024-05-16 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 93.5220(10)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   14.8710(4)
_cell_length_b                   13.4451(4)
_cell_length_c                   24.1768(9)
_cell_measurement_reflns_used    9417
_cell_measurement_temperature    100.0
_cell_measurement_theta_max      27.139
_cell_measurement_theta_min      2.707
_cell_volume                     4824.8(3)
_computing_cell_refinement       'SAINT V8.40B (?, 2016)'
_computing_data_collection       'APEX2 v2013.6-2 (Bruker, 2013)'
_computing_data_reduction        'SAINT V8.40B (?, 2016)'
_computing_molecular_graphics    'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2018/3 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT  (Sheldrick, 2015)'
_diffrn_ambient_temperature      100.00
_diffrn_detector_area_resol_mean 7.9
_diffrn_detector_type            'CCD Area Detector'
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device       'Kappa Four-Circle Diffractometer'
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0408
_diffrn_reflns_av_unetI/netI     0.0189
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.996
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            118160
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.996
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.150
_diffrn_reflns_theta_min         2.597
_diffrn_source_current           50.0
_diffrn_source_power             2.5
_diffrn_source_voltage           50.0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.173
_exptl_absorpt_correction_T_max  0.6467
_exptl_absorpt_correction_T_min  0.5379
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.1132 before and 0.0507 after correction.
The Ratio of minimum to maximum transmission is 0.8318.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            'metallic black'
_exptl_crystal_colour_lustre     metallic
_exptl_crystal_colour_primary    black
_exptl_crystal_density_diffrn    1.576
_exptl_crystal_description       block
_exptl_crystal_F_000             2344
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.17
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.875
_refine_diff_density_min         -0.832
_refine_diff_density_rms         0.061
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.026
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     645
_refine_ls_number_reflns         10648
_refine_ls_number_restraints     12
_refine_ls_restrained_S_all      1.028
_refine_ls_R_factor_all          0.0300
_refine_ls_R_factor_gt           0.0254
_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^)+(0.0381P)^2^+4.2013P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0693
_refine_ls_wR_factor_ref         0.0725
_reflns_Friedel_coverage         0.000
_reflns_number_gt                9623
_reflns_number_total             10648
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d4dt00642a2.cif
_cod_data_source_block           rajnak_tlcr39_lt
_cod_depositor_comments
'Adding full bibliography for 7716293--7716294.cif.'
_cod_database_code               7716293
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.781
_shelx_estimated_absorpt_t_min   0.696
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups, All N(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2. Restrained distances
 O8-C40 \\sim O8A-C40 \\sim O4A-C16 \\sim O4-C16
 with sigma of 0.002
 O4-C22 \\sim O4A-C22A \\sim O8A-C46A \\sim O8-C46
 with sigma of 0.002
3. Uiso/Uaniso restraints and constraints
Uanis(C23) = Uanis(C23A)
Uanis(C47A) = Uanis(C47)
Uanis(C46) = Uanis(C46A)
Uanis(O8) = Uanis(O8A)
Uanis(O4) = Uanis(O4A)
4. Others
 Sof(O4A)=Sof(C22A)=Sof(H22C)=Sof(H22D)=Sof(C23A)=Sof(H23D)=Sof(H23E)=
 Sof(H23F)=1-FVAR(1)
 Sof(O4)=Sof(C22)=Sof(H22A)=Sof(H22B)=Sof(C23)=Sof(H23A)=Sof(H23B)=Sof(H23C)=
 FVAR(1)
 Sof(O8A)=Sof(C46A)=Sof(H46C)=Sof(H46D)=Sof(C47A)=Sof(H47D)=Sof(H47E)=
 Sof(H47F)=1-FVAR(2)
 Sof(O8)=Sof(C46)=Sof(H46A)=Sof(H46B)=Sof(C47)=Sof(H47A)=Sof(H47B)=Sof(H47C)=
 FVAR(2)
5.a Ternary CH refined with riding coordinates:
 N2(H2), N6(H6)
5.b Secondary CH2 refined with riding coordinates:
 C8(H8A,H8B), C9(H9A,H9B), C10(H10A,H10B), C11(H11A,H11B), C12(H12A,H12B),
 C20(H20A,H20B), C22(H22A,H22B), C22A(H22C,H22D), C32(H32A,H32B), C33(H33A,
 H33B), C34(H34A,H34B), C35(H35A,H35B), C36(H36A,H36B), C44(H44A,H44B),
 C46(H46A,H46B), C46A(H46C,H46D)
5.c Aromatic/amide H refined with riding coordinates:
 C3(H3), C4(H4), C5(H5), C7(H7), C13(H13), C17(H17), C18(H18), C19(H19),
 C27(H27), C28(H28), C29(H29), C31(H31), C37(H37), C41(H41), C42(H42), C43(H43)
5.d Idealised Me refined as rotating group:
 C21(H21A,H21B,H21C), C23(H23A,H23B,H23C), C23A(H23D,H23E,H23F), C45(H45A,H45B,
 H45C), C47(H47A,H47B,H47C), C47A(H47D,H47E,H47F)
;
_shelx_res_checksum              92269
_olex2_submission_special_instructions 'No special instructions were received'