Tuning of spin crossover behaviour in iron(iii) complexes involving pentadentate Schiff bases and pseudohalides.
Nemec, Ivan; Herchel, Radovan; Boča, Roman; Trávníček, Zdeněk; Svoboda, Ingrid; Fuess, Hartmut; Linert, Wolfgang; Dalton transactions (Cambridge, England : 2003) 40 (2011) 10090–10099; doi:10.1039/c1dt10696a

data_7016772
_publ_section_title
;
 Tuning of spin crossover behaviour in iron(iii) complexes involving
 pentadentate Schiff bases and pseudohalides.
;
_journal_issue                   39
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              10090
_journal_page_last               10099
_journal_paper_doi               10.1039/c1dt10696a
_journal_volume                  40
_journal_year                    2011
_chemical_formula_moiety         'C24 H29 Fe N4 O4'
_chemical_formula_sum            'C24 H29 Fe N4 O4'
_chemical_formula_weight         493.36
_chemical_name_common
;
cyanido-(N,N'-bis(2-oxy-3-ethoxy-benzylidene) -1,6-diamino-4-
azahexane)-iron(iii)
;
_chemical_name_systematic
;
cyanido-(N,N'-bis(2-oxy-3-ethoxy-benzylidene)
-1,6-diamino-4-azahexane)-iron(iii)
;
_space_group_IT_number           148
_symmetry_cell_setting           trigonal
_symmetry_space_group_name_Hall  '-R 3'
_symmetry_space_group_name_H-M   'R -3 :H'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                120.00
_cell_formula_units_Z            18
_cell_length_a                   27.2418(7)
_cell_length_b                   27.2418(7)
_cell_length_c                   17.5466(4)
_cell_measurement_reflns_used    3546
_cell_measurement_temperature    304(2)
_cell_measurement_theta_max      26.35
_cell_measurement_theta_min      2.47
_cell_volume                     11277.0(5)
_computing_cell_refinement       'CrysAlis RED, Oxford Diffraction Ltd.'
_computing_data_collection       'CrysAlis CCD, Oxford Diffraction Ltd.'
_computing_data_reduction        'CrysAlis RED, Oxford Diffraction Ltd.'
_computing_molecular_graphics    'MERCURY (Macrae et al., 2006)'
_computing_publication_material  ' enCIFer (Allen et al., 2004)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      304(2)
_diffrn_detector_area_resol_mean 8.4012
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type
'Goniometer KM4/Xcalibur detector: Sapphire2 (large Be window)'
_diffrn_measurement_method
;
Rotation method data acquisition using omega and phi scans
;
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0241
_diffrn_reflns_av_sigmaI/netI    0.0131
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -32
_diffrn_reflns_limit_k_max       32
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            34620
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.48
_exptl_absorpt_coefficient_mu    0.637
_exptl_absorpt_correction_T_max  0.8030
_exptl_absorpt_correction_T_min  0.7412
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.33.5 (release 18-04-2008 CrysAlis171 .NET)
(compiled Apr 18 2008,18:17:43)
Empirical absorption correction using spherical harmonics,
implemented in SCALE3 ABSPACK scaling algorithm
;
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.308
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             4662
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.08
_platon_squeeze_details
;
;
_refine_diff_density_max         0.645
_refine_diff_density_min         -0.684
_refine_diff_density_rms         0.089
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.180
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     299
_refine_ls_number_reflns         4409
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.180
_refine_ls_R_factor_all          0.0713
_refine_ls_R_factor_gt           0.0478
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0735P)^2^+36.3512P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1260
_refine_ls_wR_factor_ref         0.1635
_reflns_number_gt                3367
_reflns_number_total             4409
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c1dt10696a.txt
_cod_data_source_block           shelxl2
_cod_original_sg_symbol_H-M      R-3
_cod_database_code               7016772