FeIIBi-Stable Materials Based on Dissymmetrical Ligands: N4Schiff Bases Including 2-Pyridyl and 5-Methylimidazol-4-yl Rings Yield Various FeIISpin-Crossover Phenomena around 300 K
Bréfuel, Nicolas; Shova, Sergiu; Lipkowski, Janusz; Tuchagues, Jean-Pierre; Chemistry of Materials 18 (2006) 5467–; doi:10.1021/cm061524m

data_4001586
_publ_section_title
;
 FeIIBi-Stable Materials Based on Dissymmetrical Ligands:&#x00A0; N4Schiff
 Bases Including 2-Pyridyl and 5-Methylimidazol-4-yl Rings Yield Various
 FeIISpin-Crossover Phenomena around 300 K
;
_journal_issue                   23
_journal_name_full               'Chemistry of Materials'
_journal_page_first              5467
_journal_paper_doi               10.1021/cm061524m
_journal_volume                  18
_journal_year                    2006
_chemical_formula_sum            'C19 H23 Fe N7 S2'
_chemical_formula_weight         469.41
_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                91.109(3)
_cell_angle_beta                 98.639(5)
_cell_angle_gamma                95.885(5)
_cell_formula_units_Z            2
_cell_length_a                   7.9487(5)
_cell_length_b                   9.8685(9)
_cell_length_c                   14.6035(13)
_cell_measurement_reflns_used    4174
_cell_measurement_temperature    350(2)
_cell_measurement_theta_max      26.73
_cell_measurement_theta_min      1.00
_cell_volume                     1125.85(16)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Nonius BV, 1997-2000)'
_computing_data_reduction
'HKL Denzo and Scalepack (Otwinowski & Minor 1997)'
_computing_molecular_graphics    'ZORTEP (Zsolnai, 1996)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      350(2)
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       '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  0.0331
_diffrn_reflns_av_sigmaI/netI    0.0472
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            7409
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.47
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.875
_exptl_absorpt_correction_T_max  0.921
_exptl_absorpt_correction_T_min  0.872
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'c.f. r.h. blessing, acta cryst. (1995), a51, 33-38'
_exptl_crystal_colour            dark-blue
_exptl_crystal_density_diffrn    1.385
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             488
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.13
_refine_diff_density_max         0.616
_refine_diff_density_min         -0.371
_refine_diff_density_rms         0.054
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.004
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     282
_refine_ls_number_reflns         3943
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.004
_refine_ls_R_factor_all          0.0901
_refine_ls_R_factor_gt           0.0700
_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^)+(0.0302P)^2^+3.1000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1318
_refine_ls_wR_factor_ref         0.1392
_reflns_number_gt                3289
_reflns_number_total             3943
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cm061524msi20060701_114251.cif
_cod_data_source_block           cpx3_FeLD2(NCS)2_at350K
_cod_database_code               4001586