Polynuclear Spin Crossover Complexes: Synthesis, Structure, and Magnetic Behavior of [Fe4(μ-CN)4(phen)4(L)2)]4+ Squares
Ishtvan Boldog; Francisco J. Muñoz-Lara; Ana B. Gaspar; M. Carmen Muñoz; Maksym Seredyuk; José A. Real; Inorganic Chemistry 48 (2009) 3710–3719; doi:10.1021/ic802306r

data_4301970
_publ_section_title
;
Polynuclear Spin Crossover Complexes: Synthesis, Structure, and Magnetic
Behavior of [Fe4(\m-CN)4(phen)4(L)2)]4+ Squares
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              3710
_journal_page_last               3719
_journal_paper_doi               10.1021/ic802306r
_journal_volume                  48
_journal_year                    2009
_chemical_formula_sum            'C90 H72 F24 Fe4 N20 P4'
_chemical_formula_weight         2236.96
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 114.322(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   29.1810(11)
_cell_length_b                   12.5580(5)
_cell_length_c                   30.4720(18)
_cell_measurement_temperature    293(2)
_cell_volume                     10175.5(8)
_computing_cell_refinement       'HKL DENZO'
_computing_data_collection       COLLECT
_computing_data_reduction        'HKL DENZO and SCALEPACK'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    SHELXS-97
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.989
_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  0.0604
_diffrn_reflns_av_sigmaI/netI    0.0847
_diffrn_reflns_limit_h_max       27
_diffrn_reflns_limit_h_min       -27
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            8526
_diffrn_reflns_theta_full        19.80
_diffrn_reflns_theta_max         19.80
_diffrn_reflns_theta_min         2.05
_exptl_absorpt_coefficient_mu    0.720
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.460
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             4528
_exptl_crystal_size_max          0.04
_exptl_crystal_size_mid          0.04
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.713
_refine_diff_density_min         -0.288
_refine_diff_density_rms         0.062
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.836
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     641
_refine_ls_number_reflns         4559
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.836
_refine_ls_R_factor_all          0.1678
_refine_ls_R_factor_gt           0.0636
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1432P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1549
_refine_ls_wR_factor_ref         0.2241
_reflns_number_gt                2076
_reflns_number_total             4559
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic802306r_si_001_4.cif
_cod_data_source_block           2-293K
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               4301970