Effect of N4-Substituent Choice on Spin Crossover in Dinuclear Iron(II) Complexes of Bis-Terdentate 1,2,4-Triazole-Based Ligands
Jonathan A. Kitchen; Juan Olguín; Rafal Kulmaczewski; Nicholas G. White; Victoria A. Milway; Guy N. L. Jameson; Jeffery L. Tallon; Sally Brooker; Inorganic Chemistry 52 (2013) 11185–11199; doi:10.1021/ic4014416

data_4336200
_publ_section_title
;
 Effect of N4-Substituent Choice on Spin Crossover in Dinuclear Iron(II)
 Complexes of Bis-Terdentate 1,2,4-Triazole-Based Ligands
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              11185
_journal_page_last               11199
_journal_paper_doi               10.1021/ic4014416
_journal_volume                  52
_journal_year                    2013
_chemical_formula_sum            'C20 H38 Cl3 N3'
_chemical_formula_weight         426.88
_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                94.275(4)
_cell_angle_beta                 91.936(4)
_cell_angle_gamma                112.067(3)
_cell_formula_units_Z            2
_cell_length_a                   6.8867(4)
_cell_length_b                   7.9366(5)
_cell_length_c                   22.8316(14)
_cell_measurement_temperature    89(2)
_cell_volume                     1150.69(12)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      89(2)
_diffrn_measured_fraction_theta_full 0.962
_diffrn_measured_fraction_theta_max 0.962
_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  0.0361
_diffrn_reflns_av_sigmaI/netI    0.0414
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            14082
_diffrn_reflns_theta_full        26.40
_diffrn_reflns_theta_max         26.40
_diffrn_reflns_theta_min         0.90
_exptl_absorpt_coefficient_mu    0.408
_exptl_absorpt_correction_T_max  0.9681
_exptl_absorpt_correction_T_min  0.8704
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SCALE(Bruker, 2004)'
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.232
_exptl_crystal_description       Rod
_exptl_crystal_F_000             460
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.569
_refine_diff_density_min         -0.342
_refine_diff_density_rms         0.094
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.090
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     236
_refine_ls_number_reflns         4533
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.090
_refine_ls_R_factor_all          0.0596
_refine_ls_R_factor_gt           0.0401
_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^)+(0.0688P)^2^+0.1237P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1034
_refine_ls_wR_factor_ref         0.1205
_reflns_number_gt                3550
_reflns_number_total             4533
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic4014416_si_002_1.cif
_cod_data_source_block           jak_340
_cod_database_code               4336200