High and Low Spin Mononuclear and Dinuclear Iron(II) Complexes of 4-Amino and 4-Pyrrolyl-3,5-di(2-pyridyl)-4H-1,2,4-triazoles
Jonathan A. Kitchen; Andy Noble; Carsten D. Brandt; Boujemaa Moubaraki; Keith S. Murray; Sally Brooker; Inorganic Chemistry 47 (2008) 9450–9458; doi:10.1021/ic801039j

data_4306118
_publ_section_title
;
High and Low Spin Mononuclear and Dinuclear Iron(II) Complexes of 4-Amino
and 4-Pyrrolyl-3,5-di(2-pyridyl)-4H-1,2,4-triazoles
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              9450
_journal_page_last               9458
_journal_paper_doi               10.1021/ic801039j
_journal_volume                  47
_journal_year                    2008
_chemical_formula_sum            'C36 H34 B4 F16 Fe2 N14 O2'
_chemical_formula_weight         1153.71
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                76.9690(10)
_cell_angle_beta                 74.4090(10)
_cell_angle_gamma                85.335(2)
_cell_formula_units_Z            1
_cell_length_a                   9.9174(3)
_cell_length_b                   10.4217(3)
_cell_length_c                   11.8950(3)
_cell_measurement_reflns_used    8774
_cell_measurement_temperature    87(2)
_cell_measurement_theta_max      26.4
_cell_measurement_theta_min      2.4
_cell_volume                     1153.41(6)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      87(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker Kappa Apex II area detector'
_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  0.0273
_diffrn_reflns_av_sigmaI/netI    0.0193
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            19894
_diffrn_reflns_theta_full        26.42
_diffrn_reflns_theta_max         26.42
_diffrn_reflns_theta_min         2.41
_exptl_absorpt_coefficient_mu    0.746
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.755064
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SCALE (bruker, 2004)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.661
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             580
_exptl_crystal_size_max          0.70
_exptl_crystal_size_mid          0.50
_exptl_crystal_size_min          0.50
_refine_diff_density_max         0.846
_refine_diff_density_min         -0.364
_refine_diff_density_rms         0.065
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.049
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     343
_refine_ls_number_reflns         4721
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.049
_refine_ls_R_factor_all          0.0290
_refine_ls_R_factor_gt           0.0280
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0419P)^2^+0.7764P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0772
_refine_ls_wR_factor_ref         0.0782
_reflns_number_gt                4537
_reflns_number_total             4721
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic801039j_si_001_3.cif
_cod_data_source_block           an57_0m
_cod_database_code               4306118