Symmetric and asymmetric ligands for Fe<sup>III</sup> spin crossover - the influence of the <i>C</i><sub>2</sub> axis.
Kelly, Conor T.; Cuza, Emmelyne; Pasquetti, Eoin; Quinn, Niall; Griffin, Michael; Nockemann, Peter; Müller-Bunz, Helge; Bruno-Colmenarez, Julia; Felton, Solveig; Lada, Zoi G.; Morgan, Grace G.; Dalton transactions (Cambridge, England : 2003) 54 (2025) 14522–14532; doi:10.1039/d5dt01833a

data_7719404
_publ_section_title
;
 Symmetric and asymmetric ligands for Fe<sup>III</sup> spin crossover -
 the influence of the <i>C</i><sub>2</sub> axis.
;
_journal_issue                   38
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              14522
_journal_page_last               14532
_journal_paper_doi               10.1039/d5dt01833a
_journal_volume                  54
_journal_year                    2025
_chemical_formula_moiety         'C23 H30 Fe N4 O4, N O3'
_chemical_formula_sum            'C23 H30 Fe N5 O7'
_chemical_formula_weight         544.37
_space_group_crystal_system      orthorhombic
_space_group_IT_number           56
_space_group_name_Hall           '-P 2ab 2ac'
_space_group_name_H-M_alt        'P c c n'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2014
_audit_update_record
;
2025-06-04 deposited with the CCDC.	2025-09-05 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   14.4297(2)
_cell_length_b                   21.6194(3)
_cell_length_c                   15.0819(2)
_cell_measurement_reflns_used    11310
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      76.4580
_cell_measurement_theta_min      3.6710
_cell_volume                     4704.97(11)
_computing_cell_refinement       'CrysAlisPro 1.171.38.41 (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.38.41 (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro 1.171.38.41 (Rigaku OD, 2015)'
_computing_structure_refinement  'SHELXL-2014 (Sheldrick, 2014)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 10.3196
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at zero, Atlas'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0267
_diffrn_reflns_av_unetI/netI     0.0170
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.994
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       27
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            27804
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.994
_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         76.936
_diffrn_reflns_theta_min         3.683
_diffrn_source                   'micro-focus sealed X-ray tube'
_exptl_absorpt_coefficient_mu    5.625
_exptl_absorpt_correction_T_max  0.745
_exptl_absorpt_correction_T_min  0.384
_exptl_absorpt_correction_type   gaussian
_exptl_absorpt_process_details
; 
CrysAlisPro 1.171.38.41 (Rigaku Oxford Diffraction, 2015) 
Numerical absorption correction based on gaussian integration over 
a multifaceted crystal model 
Empirical absorption correction using spherical harmonics, 
implemented in SCALE3 ABSPACK scaling algorithm. 
;
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    1.537
_exptl_crystal_description       plate
_exptl_crystal_F_000             2280
_exptl_crystal_size_max          0.279
_exptl_crystal_size_mid          0.138
_exptl_crystal_size_min          0.058
_refine_diff_density_max         0.570
_refine_diff_density_min         -0.614
_refine_diff_density_rms         0.054
_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     341
_refine_ls_number_reflns         4943
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.026
_refine_ls_R_factor_all          0.0369
_refine_ls_R_factor_gt           0.0328
_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^)+(0.0508P)^2^+2.3839P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0870
_refine_ls_wR_factor_ref         0.0908
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4479
_reflns_number_total             4943
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d5dt01833a2.cif
_cod_data_source_block           1-10b_mor1225
_cod_depositor_comments
'Adding full bibliography for 7719387--7719420.cif.'
_cod_database_code               7719404
_shelxl_version_number           2014-3
_shelx_res_checksum              9832