Hysteretic Four-Step Spin-Crossover in a 3D Hofmann-type Metal-Organic Framework with Aromatic Guest
Zhang, Cui-Juan; Lian, Kai-Ting; Huang, Guo-Zhang; Bala, Sukhen; Ni, Zhao-Ping; Tong, Ming-Liang; Chemical Communications  (2019) –; doi:10.1039/C9CC06017K

data_7124045
_publ_section_title
;
 Hysteretic Four-Step Spin-Crossover in a 3D Hofmann-type Metal-Organic
 Framework with Aromatic Guest
;
_journal_name_full               'Chemical Communications'
_journal_paper_doi               10.1039/C9CC06017K
_journal_year                    2019
_chemical_formula_moiety         'C16 H8 Ag2 Fe N8 O, 1.5(C6 H6)'
_chemical_formula_sum            'C25 H17 Ag2 Fe N8 O'
_chemical_formula_weight         717.05
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     dual
_audit_creation_date             2018-10-26
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2019-04-30 deposited with the CCDC.    2019-08-20 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 105.924(2)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   28.6573(19)
_cell_length_b                   14.3191(10)
_cell_length_c                   14.5629(9)
_cell_measurement_reflns_used    9994
_cell_measurement_temperature    273(2)
_cell_measurement_theta_max      26.29
_cell_measurement_theta_min      2.63
_cell_volume                     5746.5(7)
_computing_cell_refinement       'SAINT v8.37A (Bruker, 2015)'
_computing_data_reduction        'SAINT v8.37A (Bruker, 2015)'
_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    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      273.06
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.997
_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  0.0449
_diffrn_reflns_av_unetI/netI     0.0246
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       36
_diffrn_reflns_limit_h_min       -37
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            60633
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.997
_diffrn_reflns_theta_full        26.000
_diffrn_reflns_theta_max         27.543
_diffrn_reflns_theta_min         2.634
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.879
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.6582
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2014/5 (Bruker,2014/5) was used for absorption correction.
wR2(int) was 0.0736 before and 0.0494 after correction.
The Ratio of minimum to maximum transmission is 0.8828.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            yellow
_exptl_crystal_colour_primary    yellow
_exptl_crystal_density_diffrn    1.658
_exptl_crystal_description       block
_exptl_crystal_F_000             2808
_exptl_crystal_size_max          0.119
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.041
_refine_diff_density_max         1.308
_refine_diff_density_min         -0.719
_refine_diff_density_rms         0.112
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.061
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     349
_refine_ls_number_reflns         6623
_refine_ls_number_restraints     111
_refine_ls_restrained_S_all      1.071
_refine_ls_R_factor_all          0.0630
_refine_ls_R_factor_gt           0.0388
_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^)+(0.0649P)^2^+12.1004P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1101
_refine_ls_wR_factor_ref         0.1236
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4833
_reflns_number_total             6623
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9cc06017k2.cif
_cod_data_source_block           1-bz-273K
_cod_database_code               7124045
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_max   0.927
_shelx_estimated_absorpt_t_min   0.807
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
2. Restrained distances
 C17-C18 = C19-C20 = C21-C22
 1.39 with sigma of 0.005
3. Uiso/Uaniso restraints and constraints
C26 \\sim C27 \\sim C28 \\sim C23 \\sim C24 \\sim C25: within 1.7A with sigma
of 0.01 and sigma for terminal atoms of 0.02
C22 \\sim C17 \\sim C18 \\sim C19 \\sim C20 \\sim C21: within 1.7A with sigma
of 0.01 and sigma for terminal atoms of 0.02
Uanis(C27) \\sim Ueq, Uanis(C28) \\sim Ueq, Uanis(C23) \\sim Ueq, Uanis(C24)
\\sim Ueq, Uanis(C25) \\sim Ueq, Uanis(C26) \\sim Ueq: with sigma of 0.01 and
sigma for terminal atoms of 0.02
4. Others
 Fixed Sof: C25(0.5) H25(0.5) C24(0.5) H24(0.5) C23(0.5) H23(0.5) C28(0.5)
 H28(0.5) C27(0.5) H27(0.5) C26(0.5) H26(0.5)
5.a Riding coordinates:
 C25(H25), C24(H24), C23(H23), C28(H28), C27(H27), C26(H26)
5.b Aromatic/amide H refined with riding coordinates:
 C5(H5), C6(H6), C8(H8), C9(H9), C13(H13), C14(H14), C15(H15), C16(H16),
 C17(H17), C18(H18), C19(H19), C20(H20), C21(H21), C22(H22)
5.c Fitted hexagon refined as free rotating group:
 C25(C24,C23,C28,C27,C26)
;
_shelx_res_checksum              55940
_olex2_submission_special_instructions 'No special instructions were received'