Temperature-dependent hysteretic two-step spin crossover in two-dimensional Hofmann-type compounds.
Li, Yue; Liu, Min; Yao, Zi-Shuo; Tao, Jun; Dalton transactions (Cambridge, England : 2003) 49 (2020) 7245–7251; doi:10.1039/d0dt00866d

data_7704302
_publ_section_title
;
 Temperature-dependent hysteretic two-step spin crossover in
 two-dimensional Hofmann-type compounds.
;
_journal_issue                   21
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              7245
_journal_page_last               7251
_journal_paper_doi               10.1039/d0dt00866d
_journal_volume                  49
_journal_year                    2020
_chemical_formula_moiety         'C28 H20 Fe N8 Pt'
_chemical_formula_sum            'C28 H20 Fe N8 Pt'
_chemical_formula_weight         719.46
_space_group_crystal_system      orthorhombic
_space_group_IT_number           65
_space_group_name_Hall           '-C 2 2'
_space_group_name_H-M_alt        'C m m m'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_audit_creation_date             2020-04-27
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2020-04-29 deposited with the CCDC.	2020-05-05 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   7.2305(3)
_cell_length_b                   28.3930(14)
_cell_length_c                   7.3865(5)
_cell_measurement_reflns_used    5306
_cell_measurement_temperature    190
_cell_measurement_theta_max      29.7000
_cell_measurement_theta_min      3.5650
_cell_volume                     1516.42(14)
_computing_cell_refinement       'CrysAlisPro 1.171.39.29d (Rigaku OD, 2017)'
_computing_data_collection       'CrysAlisPro 1.171.39.29d (Rigaku OD, 2017)'
_computing_data_reduction        'CrysAlisPro 1.171.39.29d (Rigaku OD, 2017)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXS (Sheldrick, 2008)'
_diffrn_ambient_temperature      190
_diffrn_detector                 'CCD plate'
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.943
_diffrn_measurement_details
;
List of Runs (angles in degrees, time in seconds):

  # Type    Start    End  Width  t~exp~   \w     \q     \k     \f   Frames
  1  \w      9.00  34.00   0.50   23.00    --    0.00  58.00  40.00   50
  2  \w    -58.00 -33.00   0.50   23.00    --    0.00 -58.00-100.00   50
  3  \w    -41.00 -14.00   0.50   23.00    --    0.00 -82.00-120.00   54
  4  \w    -58.00  17.00   0.50   23.00    --    0.00 -82.00 -30.00  150
  5  \w    -56.00 -29.00   0.50   23.00    --    0.00 -82.00  60.00   54
  6  \w    -76.00  22.00   0.50   23.00    --    0.00 -77.00-180.00  196
  7  \w    -60.00 -32.00   0.50   23.00    --    0.00 -82.00  30.00   56
;
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'XtaLAB AFC12 (RINC): Kappa single'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_type
'CrysAlisPro convention (1999,Acta A55,543-557)'
_diffrn_orient_matrix_UB_11      0.0575464000
_diffrn_orient_matrix_UB_12      0.0586468000
_diffrn_orient_matrix_UB_13      -0.0132987000
_diffrn_orient_matrix_UB_21      -0.0323841000
_diffrn_orient_matrix_UB_22      -0.0407231000
_diffrn_orient_matrix_UB_23      -0.0211264000
_diffrn_orient_matrix_UB_31      -0.0697448000
_diffrn_orient_matrix_UB_32      0.0672066000
_diffrn_orient_matrix_UB_33      -0.0011783000
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0860
_diffrn_reflns_av_unetI/netI     0.0424
_diffrn_reflns_Laue_measured_fraction_full 0.994
_diffrn_reflns_Laue_measured_fraction_max 0.943
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       38
_diffrn_reflns_limit_k_min       -35
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            9060
_diffrn_reflns_point_group_measured_fraction_full 0.994
_diffrn_reflns_point_group_measured_fraction_max 0.943
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         29.632
_diffrn_reflns_theta_min         3.546
_diffrn_source                   'fine-focus sealed X-ray tube'
_diffrn_source_type              'Enhance (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    5.115
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.47437
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.39.29d (Rigaku Oxford Diffraction, 2017)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            'clear reddish red'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   reddish
_exptl_crystal_colour_primary    red
_exptl_crystal_density_diffrn    1.576
_exptl_crystal_description       plate
_exptl_crystal_F_000             696
_exptl_crystal_size_max          0.1
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.02
_platon_squeeze_details          TITL
_refine_diff_density_max         2.636
_refine_diff_density_min         -1.407
_refine_diff_density_rms         0.202
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.067
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     121
_refine_ls_number_reflns         1183
_refine_ls_number_restraints     199
_refine_ls_restrained_S_all      2.233
_refine_ls_R_factor_all          0.0491
_refine_ls_R_factor_gt           0.0451
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0747P)^2^+8.3153P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1157
_refine_ls_wR_factor_ref         0.1176
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1108
_reflns_number_total             1183
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d0dt00866d2.cif
_cod_data_source_block           compound2_190K
_cod_depositor_comments
'Adding full bibliography for 7704300--7704305.cif.'
_cod_database_code               7704302
_shelx_shelxl_version_number     2014/7
_reflns_odcompleteness_completeness 99.46
_reflns_odcompleteness_iscentric 1
_reflns_odcompleteness_theta     26.32
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
2. Restrained distances
 Fe1-N1
 2.09 with sigma of 0.02
 C3-C6
 1.5 with sigma of 0.02
 C6-C7
 1.38 with sigma of 0.02
 C7-C8
 1.5 with sigma of 0.02
 C10-C9 = C11-C8 = C12-N2
 1.38 with sigma of 0.02
3. Restrained planarity
 N1, C5, C4, C3, C2, C1, C10, C9, C11, C8
 with sigma of 0.1
 N1, C5, C4, C3, C2, C1, C10, C9, C11, C8, C7, C6, C12, N2
 with sigma of 0.1
4. Uiso/Uaniso restraints and constraints
N1 \\sim C5 \\sim C4 \\sim C3 \\sim C2 \\sim C1 \\sim C10 \\sim C9 \\sim C8
\\sim N2 \\sim C12 \\sim C11 \\sim C7 \\sim C6: within 2A with sigma of 0.04
and sigma for terminal atoms of 0.08
Uanis(N1) \\sim Ueq, Uanis(C5) \\sim Ueq, Uanis(C4) \\sim Ueq, Uanis(C3) \\sim
Ueq, Uanis(C2) \\sim Ueq, Uanis(C1) \\sim Ueq, Uanis(C10) \\sim Ueq, Uanis(C9)
\\sim Ueq, Uanis(C8) \\sim Ueq, Uanis(N2) \\sim Ueq, Uanis(C12) \\sim Ueq,
Uanis(C11) \\sim Ueq, Uanis(C7) \\sim Ueq, Uanis(C6) \\sim Ueq: with sigma of
0.01 and sigma for terminal atoms of 0.02
5. Others
 Fixed Sof: N1(0.25) C5(0.25) H5(0.25) C4(0.25) H4(0.25) C3(0.25) C2(0.25)
 H2(0.25) C1(0.25) H1(0.25) C10(0.25) H10(0.25) C9(0.25) H9(0.25) C8(0.25)
 N2(0.25) C12(0.25) H12(0.25) C11(0.25) H11(0.25) C7(0.25) H7(0.25) C6(0.25)
 H6(0.25)
6.a Aromatic/amide H refined with riding coordinates:
 C5(H5), C4(H4), C2(H2), C1(H1), C10(H10), C9(H9), C12(H12), C11(H11), C7(H7),
 C6(H6)
6.b Fitted hexagon refined as free rotating group:
 N1(C5,C4,C3,C2,C1), C10(C9,C8,N2,C12,C11)
;
_olex2_submission_special_instructions 'No special instructions were received'
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
;
_oxdiff_exptl_absorpt_empirical_full_max 3.836
_oxdiff_exptl_absorpt_empirical_full_min 0.288