One- and Two-Step Spin-Crossover Behavior of [FeII(isoxazole)6]2+ and the Structure and Magnetic Properties of Triangular [FeIII3O(OAc)6(isoxazole)3][ClO4]
Wendy Hibbs; Petra J. van Koningsbruggen; Atta M. Arif; William W. Shum; Joel S. Miller; Inorganic Chemistry 42 (2003) 5645–5653; doi:10.1021/ic034226p

data_4314161
_publ_section_title
;
 One- and Two-Step Spin-Crossover Behavior of [FeII(isoxazole)6]2+ and the
 Structure and Magnetic Properties of Triangular
 [FeIII3O(OAc)6(isoxazole)3][ClO4]
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              5645
_journal_page_last               5653
_journal_paper_doi               10.1021/ic034226p
_journal_volume                  42
_journal_year                    2003
_chemical_formula_sum            'C18 H18 B2 F8 Fe N6 O6'
_chemical_formula_weight         643.85
_space_group_IT_number           147
_symmetry_cell_setting           trigonal
_symmetry_space_group_name_Hall  '-P 3'
_symmetry_space_group_name_H-M   'P -3'
_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                 90.00
_cell_angle_gamma                120.00
_cell_formula_units_Z            3
_cell_length_a                   17.4387(4)
_cell_length_b                   17.4387(4)
_cell_length_c                   7.6847(2)
_cell_measurement_reflns_used    2656
_cell_measurement_temperature    260(1)
_cell_measurement_theta_max      27.485
_cell_measurement_theta_min      1.018
_cell_volume                     2023.88(8)
_computing_cell_refinement       DENZO-SMN
_computing_data_collection       'Nonius COLLECT'
_computing_data_reduction        DENZO-SMN
_computing_molecular_graphics    'WinGX, Ortep3'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    SIR97
_diffrn_ambient_temperature      260(1)
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  'Nonius KappaCCD Diffractometer'
_diffrn_measurement_method       'Phi plus Omega scan'
_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  0.0225
_diffrn_reflns_av_sigmaI/netI    0.0406
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            5585
_diffrn_reflns_theta_full        27.45
_diffrn_reflns_theta_max         27.45
_diffrn_reflns_theta_min         4.45
_diffrn_standards_decay_%        '< 2.0'
_exptl_absorpt_coefficient_mu    0.659
_exptl_absorpt_correction_T_max  0.8526
_exptl_absorpt_correction_T_min  0.8021
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'DENZO-SMN (Otwinowski & Minor, 1997)'
_exptl_crystal_colour            'pale purple'
_exptl_crystal_density_diffrn    1.585
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             972
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.35
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.358
_refine_diff_density_min         -0.308
_refine_diff_density_rms         0.048
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.025
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     300
_refine_ls_number_reflns         3053
_refine_ls_number_restraints     199
_refine_ls_restrained_S_all      1.015
_refine_ls_R_factor_all          0.0720
_refine_ls_R_factor_gt           0.0496
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0783P)^2^+0.6769P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1296
_refine_ls_wR_factor_ref         0.1476
_reflns_number_gt                2240
_reflns_number_total             3053
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic034226p_s2.cif
_cod_data_source_block           '[FeII(oxazole)6][BF4]2_260K'
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'Multi-scan' changed to
'multi-scan' according to the built-in table from CIF Core dictionary
named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 
;
_cod_database_code               4314161