Role of Fe-N-C Geometry Flip-Flop in Bistability in Fe(tetrazol-2-yl)4(C2H5CN)2-Type Core Based Coordination Network
Agata Białońska; Robert Bronisz; Inorganic Chemistry 51 (2012) 12630–12637; doi:10.1021/ic300880w

data_4331116
_publ_contact_author_email       robert.bronisz@chem.uni.wroc.pl
_publ_section_title
;
 Role of Fe-N-C Geometry Flip-Flop in Bistability in
 Fe(tetrazol-2-yl)4(C2H5CN)2-Type Core Based Coordination Network
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              12630
_journal_page_last               12637
_journal_paper_doi               10.1021/ic300880w
_journal_volume                  51
_journal_year                    2012
_chemical_formula_moiety         'C14 H22 Fe N18, 2(Cl O4)'
_chemical_formula_sum            'C14 H22 Cl2 Fe N18 O8'
_chemical_formula_weight         697.25
_chemical_name_systematic
; 
catena-[bis(\m~2~-1,2-di(tetrazol-2-yl)ethane)-bis(propionitrile)]
-iron(II) diperchlorate  
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 106.75(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   8.388(2)
_cell_length_b                   15.370(3)
_cell_length_c                   11.616(3)
_cell_measurement_reflns_used    3592
_cell_measurement_temperature    250(2)
_cell_measurement_theta_max      28.71
_cell_measurement_theta_min      2.86
_cell_volume                     1434.0(6)
_computing_cell_refinement
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.33.52 (release 06-11-2009 CrysAlis171 .NET)
(compiled Nov  6 2009,16:24:50)
;
_computing_data_collection
;
CrysAlis CCD, Oxford Diffraction Ltd.,
Version 1.171.33.52 (release 06-11-2009 CrysAlis171 .NET)
(compiled Nov  6 2009,16:24:50)
;
_computing_data_reduction
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.33.52 (release 06-11-2009 CrysAlis171 .NET)
(compiled Nov  6 2009,16:24:50)
;
_computing_structure_refinement
;
SHELXL-97 (Sheldrick, G. M. (2008). <i>Acta Cryst.</i> <b>A64</b>, 112-122.)
;
_computing_structure_solution
;
SHELXS-97 (Sheldrick, G. M. (2008). <i>Acta Cryst.</i> <b>A64</b>, 112-122.)
;
_diffrn_ambient_temperature      250(2)
_diffrn_measured_fraction_theta_full 0.984
_diffrn_measured_fraction_theta_max 0.984
_diffrn_measurement_device_type  'Kuma KM4CCD'
_diffrn_measurement_method       '\w 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  0.0472
_diffrn_reflns_av_sigmaI/netI    0.0562
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            9589
_diffrn_reflns_theta_full        27.00
_diffrn_reflns_theta_max         27.00
_diffrn_reflns_theta_min         2.86
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.786
_exptl_absorpt_correction_T_max  0.945
_exptl_absorpt_correction_T_min  0.916
_exptl_absorpt_correction_type   analytical
_exptl_absorpt_process_details
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.33.52 (release 06-11-2009 CrysAlis171 .NET)
(compiled Nov  6 2009,16:24:50)
Analytical numeric absorption correction using a multifaceted crystal
            model based on expressions derived by R.C. Clark & J.S. Reid.
(Clark, R. C. & Reid, J. S. (1995). Acta Cryst. A51, 887-897)
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.615
_exptl_crystal_description       block
_exptl_crystal_F_000             712
_exptl_crystal_size_max          0.19
_exptl_crystal_size_mid          0.09
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.292
_refine_diff_density_min         -0.257
_refine_diff_density_rms         0.056
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.899
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     243
_refine_ls_number_reflns         3087
_refine_ls_number_restraints     60
_refine_ls_restrained_S_all      0.899
_refine_ls_R_factor_all          0.0714
_refine_ls_R_factor_gt           0.0354
_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^)+(0.0440P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0752
_refine_ls_wR_factor_ref         0.0840
_reflns_number_gt                1937
_reflns_number_total             3087
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic300880w_si_003_2.cif
_cod_data_source_block           2_250_down
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               4331116