Cyanocarbanion-Based Spin-Crossover Materials: Photocrystallographic and Photomagnetic Studies of a New Iron(II) Neutral Chain
Gaelle Dupouy; Smail Triki; Mathieu Marchivie; Nathalie Cosquer; Carlos J. Gómez-García; Sébastien Pillet; El-Eulmi Bendeif; Claude Lecomte; Saket Asthana; Jean-François Létard; Inorganic Chemistry 49 (2010) 9358–9368; doi:10.1021/ic101038z

data_4316761
_publ_contact_author_address
;
UMR CNRS 6521, Universit\'e de Bretagne Occidentale,
BP 809, 29285 Brest Cedex (France)
;
_publ_contact_author_email       ' triki@univ-brest.fr'
_publ_contact_author_fax         +33298017001
_publ_contact_author_name        ' Prof. Smail Triki'
_publ_contact_author_phone       +33298016146
_publ_section_title
;
 Cyanocarbanion-Based Spin-Crossover Materials: Photocrystallographic and
 Photomagnetic Studies of a New Iron(II) Neutral Chain
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              9358
_journal_page_last               9368
_journal_paper_doi               10.1021/ic101038z
_journal_volume                  49
_journal_year                    2010
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C34 H20 Fe1 N18'
_chemical_formula_sum            'C34 H20 Fe N18'
_chemical_formula_weight         736.53
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_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                 92.364(1)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   11.3665(1)
_cell_length_b                   12.2759(2)
_cell_length_c                   11.8437(1)
_cell_measurement_reflns_used    28702
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      33.14
_cell_measurement_theta_min      3.32
_cell_volume                     1651.19(3)
_computing_cell_refinement       'DENZO (Otwinowski, 1996)'
_computing_data_collection       'COLLECT (Otwinowski, 1996)'
_computing_data_reduction        'SORTAV (Blessing, 1989)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      200(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Oxford Xcalibur CCD'
_diffrn_measurement_method       'omega 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  0.0257
_diffrn_reflns_av_sigmaI/netI    0.0205
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            28702
_diffrn_reflns_theta_full        33.14
_diffrn_reflns_theta_max         33.14
_diffrn_reflns_theta_min         3.32
_exptl_absorpt_coefficient_mu    0.514
_exptl_absorpt_correction_T_max  0.921
_exptl_absorpt_correction_T_min  0.862
_exptl_absorpt_correction_type   gaussian
_exptl_absorpt_process_details
;
Absorption correction were performed using CRYSALIS Oxford Diffraction (2004)
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.481
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             752
_exptl_crystal_size_max          0.320
_exptl_crystal_size_mid          0.240
_exptl_crystal_size_min          0.160
_refine_diff_density_max         0.361
_refine_diff_density_min         -0.536
_refine_diff_density_rms         0.068
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.282
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     322
_refine_ls_number_reflns         6276
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.282
_refine_ls_R_factor_all          0.0730
_refine_ls_R_factor_gt           0.0672
_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^)+(0.0000P)^2^+2.7512P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1331
_refine_ls_wR_factor_ref         0.1351
_reflns_number_gt                5610
_reflns_number_total             6276
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            ic101038z_si_001_3.cif
_cod_data_source_block           200K
_cod_database_code               4316761