Spin crossover and reversible single-crystal to single-crystal transformation behaviour in two cyanide-bridged mixed-valence {FeFe} clusters.
Zheng, Chunyang; Xu, Juping; Wang, Feng; Tao, Jun; Li, Dongfeng; Dalton transactions (Cambridge, England : 2003) 45 (2016) 17254–17263; doi:10.1039/c6dt03436e

data_7040719
_publ_section_title
;
 Spin crossover and reversible single-crystal to single-crystal
 transformation behaviour in two cyanide-bridged mixed-valence {FeFe}
 clusters.
;
_journal_issue                   43
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              17254
_journal_page_last               17263
_journal_paper_doi               10.1039/c6dt03436e
_journal_volume                  45
_journal_year                    2016
_chemical_formula_moiety         '(C66 H68 B2 Fe4 N26), 2(Cl O4)'
_chemical_formula_sum            'C66 H68 B2 Cl2 Fe4 N26 O8'
_chemical_formula_weight         1669.38
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2016-09-02 deposited with the CCDC.
2016-09-26 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 98.360(4)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   12.903(3)
_cell_length_b                   18.050(4)
_cell_length_c                   16.372(4)
_cell_measurement_reflns_used    9648
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      25.50
_cell_measurement_theta_min      2.17
_cell_volume                     3772.5(15)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-2014 (Sheldrick, 2014)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w 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  0.0619
_diffrn_reflns_av_unetI/netI     0.0545
_diffrn_reflns_Laue_measured_fraction_full 0.994
_diffrn_reflns_Laue_measured_fraction_max 0.994
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            27664
_diffrn_reflns_point_group_measured_fraction_full 0.994
_diffrn_reflns_point_group_measured_fraction_max 0.994
_diffrn_reflns_theta_full        24.997
_diffrn_reflns_theta_max         24.997
_diffrn_reflns_theta_min         1.689
_exptl_absorpt_coefficient_mu    0.896
_exptl_absorpt_correction_T_max  0.9157
_exptl_absorpt_correction_T_min  0.9001
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            Red
_exptl_crystal_density_diffrn    1.470
_exptl_crystal_description       Block
_exptl_crystal_F_000             1716
_exptl_crystal_size_max          0.120
_exptl_crystal_size_mid          0.100
_exptl_crystal_size_min          0.100
_refine_diff_density_max         1.001
_refine_diff_density_min         -0.465
_refine_diff_density_rms         0.075
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.003
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     535
_refine_ls_number_reflns         6611
_refine_ls_number_restraints     176
_refine_ls_restrained_S_all      1.026
_refine_ls_R_factor_all          0.0812
_refine_ls_R_factor_gt           0.0612
_refine_ls_shift/su_max          0.005
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0485P)^2^+14.7305P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1530
_refine_ls_wR_factor_ref         0.1679
_reflns_Friedel_coverage         0.000
_reflns_number_gt                5095
_reflns_number_total             6611
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c6dt03436e2.cif
_cod_data_source_block           2-296K
_cod_depositor_comments
'Adding full bibliography for 7040715--7040730.cif.'
_cod_original_cell_volume        3772.6(15)
_cod_database_code               7040719
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.900
_shelx_estimated_absorpt_t_max   0.916
_shelx_res_checksum              79979