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_7124051
_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, 2(C7 H5)'
_chemical_formula_sum            'C30 H18 Ag2 Fe N8 O'
_chemical_formula_weight         778.11
_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             2018-11-03
_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                 105.919(6)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   28.679(4)
_cell_length_b                   14.1905(17)
_cell_length_c                   14.5490(15)
_cell_measurement_reflns_used    9937
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      26.35
_cell_measurement_theta_min      2.64
_cell_volume                     5693.9(12)
_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      298.03
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.974
_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  0.0719
_diffrn_reflns_av_unetI/netI     0.0465
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.974
_diffrn_reflns_limit_h_max       37
_diffrn_reflns_limit_h_min       -36
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            54949
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.974
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.617
_diffrn_reflns_theta_min         2.640
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.905
_exptl_absorpt_correction_T_max  0.0949
_exptl_absorpt_correction_T_min  0.0563
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2014/5 (Bruker,2014/5) was used for absorption correction.
wR2(int) was 0.1095 before and 0.0727 after correction.
The Ratio of minimum to maximum transmission is 0.5933.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            yellow
_exptl_crystal_colour_primary    yellow
_exptl_crystal_density_diffrn    1.815
_exptl_crystal_description       block
_exptl_crystal_F_000             3056
_exptl_crystal_size_max          0.109
_exptl_crystal_size_mid          0.084
_exptl_crystal_size_min          0.069
_refine_diff_density_max         1.943
_refine_diff_density_min         -1.475
_refine_diff_density_rms         0.290
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.055
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     356
_refine_ls_number_reflns         6468
_refine_ls_number_restraints     90
_refine_ls_restrained_S_all      1.057
_refine_ls_R_factor_all          0.1255
_refine_ls_R_factor_gt           0.0790
_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^)+(0.1082P)^2^+106.3892P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2252
_refine_ls_wR_factor_ref         0.2636
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4014
_reflns_number_total             6468
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9cc06017k2.cif
_cod_data_source_block           1-anth-298K
_cod_database_code               7124051
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_max   0.880
_shelx_estimated_absorpt_t_min   0.819
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
2. Uiso/Uaniso restraints and constraints
Uanis(C17) \\sim Ueq, Uanis(C18) \\sim Ueq, Uanis(C19) \\sim Ueq, Uanis(C20)
\\sim Ueq, Uanis(C21) \\sim Ueq, Uanis(C22) \\sim Ueq, Uanis(C23) \\sim Ueq,
Uanis(C24) \\sim Ueq: with sigma of 0.01 and sigma for terminal atoms of 0.02
Uanis(C25) \\sim Ueq, Uanis(C26) \\sim Ueq, Uanis(C27) \\sim Ueq, Uanis(C28)
\\sim Ueq, Uanis(C29) \\sim Ueq, Uanis(C30) \\sim Ueq, Uanis(C31) \\sim Ueq:
with sigma of 0.01 and sigma for terminal atoms of 0.02
Uanis(C26) \\sim Ueq, Uanis(C27) \\sim Ueq, Uanis(C28) \\sim Ueq, Uanis(C29)
\\sim Ueq, Uanis(C30) \\sim Ueq, Uanis(C25) \\sim Ueq: with sigma of 0.001 and
sigma for terminal atoms of 0.002
3.a Riding coordinates:
 C27(H27), C26(H26)
3.b Aromatic/amide H refined with riding coordinates:
 C5(H5), C6(H6), C8(H8), C9(H9), C13(H13), C14(H14), C15(H15), C16(H16),
 C19(H19), C20(H20), C17(H17), C18(H18), C23(H23), C24(H24), C25(H25), C28(H28),
  C31(H31)
3.c Fitted hexagon refined as free rotating group:
 C19(C20,C21,C22,C17,C18), C25(C30,C29,C28,C27,C26)
;
_shelx_res_checksum              17939
_olex2_submission_special_instructions 'No special instructions were received'