An azido-bridged [FeII4] grid-like molecule showing spin crossover behaviour
Guo, Zhilin; You, Maolin; Deng, Yi-Fei; Liu, Qiang; Meng, Yin-Shan; Pikramenou, Zoe; Zhang, Yuan-Zhu; Dalton Transactions  (2021) –; doi:10.1039/D1DT01908B

data_7708188
_publ_section_title
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 An azido-bridged [FeII4] grid-like molecule showing spin crossover
 behaviour
;
_journal_name_full               'Dalton Transactions'
_journal_paper_doi               10.1039/D1DT01908B
_journal_year                    2021
_chemical_formula_moiety         'C56 H40 Fe4 N28, 4(C24 H20 B), C4 H6 N2'
_chemical_formula_sum            'C156 H126 B4 Fe4 N30'
_chemical_formula_weight         2687.50
_space_group_crystal_system      tetragonal
_space_group_IT_number           88
_space_group_name_Hall           '-I 4ad'
_space_group_name_H-M_alt        'I 41/a :2'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2020-07-02
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2021-04-18 deposited with the CCDC.	2021-09-03 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   17.2401(3)
_cell_length_b                   17.2401(3)
_cell_length_c                   42.8980(10)
_cell_measurement_reflns_used    9862
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      68.16
_cell_measurement_theta_min      4.02
_cell_volume                     12750.2(4)
_computing_cell_refinement       'SAINT V8.40A (?, 2016)'
_computing_data_reduction        'SAINT V8.40A (?, 2016)'
_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      100.0
_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           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0565
_diffrn_reflns_av_unetI/netI     0.0370
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       51
_diffrn_reflns_limit_l_min       -44
_diffrn_reflns_number            37412
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.997
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         68.299
_diffrn_reflns_theta_min         4.016
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    4.124
_exptl_absorpt_correction_T_max  0.7531
_exptl_absorpt_correction_T_min  0.4285
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2016/2 (Bruker,2016/2) was used for absorption correction. wR2(int) was 0.1250 before and 0.0650 after correction. The Ratio of minimum to maximum transmission is 0.5690. The \l/2 correction factor is Not present.'
_exptl_crystal_colour            'dark black'
_exptl_crystal_colour_modifier   dark
_exptl_crystal_colour_primary    black
_exptl_crystal_density_diffrn    1.400
_exptl_crystal_description       block
_exptl_crystal_F_000             5584
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.701
_refine_diff_density_min         -0.225
_refine_diff_density_rms         0.047
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.068
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     440
_refine_ls_number_reflns         5831
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.068
_refine_ls_R_factor_all          0.0459
_refine_ls_R_factor_gt           0.0369
_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^)+(0.0620P)^2^+2.6287P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0965
_refine_ls_wR_factor_ref         0.1011
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4923
_reflns_number_total             5831
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d1dt01908b2.cif
_cod_data_source_block           100k
_cod_original_cell_volume        12750.2(5)
_cod_original_sg_symbol_H-M      'I 41/a'
_cod_database_code               7708188
_shelx_shelxl_version_number     2018/1
_shelx_estimated_absorpt_t_max   0.493
_shelx_estimated_absorpt_t_min   0.425
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2. Others
 Fixed Sof: H39a(0.5) H39b(0.5) H39c(0.5)
3.a Aromatic/amide H refined with riding coordinates:
 C1(H1), C14(H14), C8(H8), C16(H16), C11(H11), C7(H7), C17(H17), C20(H20),
 C24(H24), C19(H19), C3(H3), C13(H13), C18(H18), C2(H2), C4(H4), C12(H12),
 C38(H38), C23(H23), C28(H28), C34(H34), C29(H29), C32(H32), C22(H22), C25(H25),
  C37(H37), C26(H26), C30(H30), C36(H36), C35(H35), C31(H31)
3.b Idealised Me refined as rotating group:
 C39(H39a,H39b,H39c)
;
_shelx_res_checksum              87183
_shelx_hkl_checksum              11256
_olex2_submission_special_instructions 'No special instructions were received'