Nitrile-Rich Coordination Polymer ^1^~\ιnfty~{[Fe(CH~3~CN)~4~(pyrazine)](ClO~4~)~2~} Exhibiting a HS \λeftarrow→LS Transition
Agata Białońska; Andrew Ozarowski; Robert Bronisz; Kamilla Darowska; Krzysztof Drabent; Joachim Kusz; Miłosz Siczek; Marek Weselski; Maciej Zubko; Inorganic Chemistry 49 (2010) 11267–11269; doi:10.1021/ic102040y

data_4317368
_publ_contact_author_address
;
Faculity of Chemistry
University of Wroc\/law
F.Joliot-Curie 14
50-383 Wroc\/law
Poland
;
_publ_contact_author_email       bron@wchuwr.pl
_publ_contact_author_name        'Robert Bronisz'
_publ_section_title
;
 Nitrile-Rich Coordination Polymer
 ^1^~\\infty~{[Fe(CH~3~CN)~4~(pyrazine)](ClO~4~)~2~} Exhibiting a HS
 \\leftarrow\\rightarrow LS Transition
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              11267
_journal_page_last               11269
_journal_paper_doi               10.1021/ic102040y
_journal_volume                  49
_journal_year                    2010
_chemical_formula_moiety         'C12 H16 Fe N6, 2(Cl O4)'
_chemical_formula_sum            'C12 H16 Cl2 Fe N6 O8'
_chemical_formula_weight         499.06
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           56
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ab 2ac'
_symmetry_space_group_name_H-M   'P c c n'
_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                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.7086(2)
_cell_length_b                   11.8328(2)
_cell_length_c                   13.6558(3)
_cell_measurement_reflns_used    5087
_cell_measurement_temperature    80(1)
_cell_measurement_theta_max      34.5938
_cell_measurement_theta_min      2.4411
_cell_volume                     1891.95(6)
_computing_cell_refinement
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.32.29
;
_computing_data_collection
;
CrysAlis CCD, Oxford Diffraction Ltd.,
Version 1.171.32.29
;
_computing_data_reduction
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.32.29
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      80(1)
_diffrn_detector_area_resol_mean 16.0328
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type
;
Oxford Diffraction Diffractometer with Sapphire3 detector
;
_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  0.0425
_diffrn_reflns_av_sigmaI/netI    0.0324
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            11555
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.04
_diffrn_reflns_theta_min         2.45
_exptl_absorpt_coefficient_mu    1.136
_exptl_absorpt_correction_T_max  0.9047
_exptl_absorpt_correction_T_min  0.7802
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.32.29
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            violet
_exptl_crystal_density_diffrn    1.752
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       polyhedron
_exptl_crystal_F_000             1016
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.11
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.900
_refine_diff_density_min         -0.477
_refine_diff_density_rms         0.088
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.783
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     176
_refine_ls_number_reflns         1679
_refine_ls_number_restraints     20
_refine_ls_restrained_S_all      1.777
_refine_ls_R_factor_all          0.0706
_refine_ls_R_factor_gt           0.0527
_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^)+(0.0394P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1184
_refine_ls_wR_factor_ref         0.1207
_reflns_number_gt                1362
_reflns_number_total             1679
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic102040y_si_002_5.cif
_cod_data_source_block           Temperature_80K
_cod_database_code               4317368