Dinuclear Spin-Crossover Complexes Based on Tetradentate and Bridging Cyanocarbanion Ligands.
Milin, Eric; Belaïd, Sabrina; Patinec, Véronique; Triki, Smail; Chastanet, Guillaume; Marchivie, Mathieu; Inorganic chemistry 55 (2016) 9038–9046; doi:10.1021/acs.inorgchem.6b01542

data_4348722
_publ_section_title
;
 Dinuclear Spin-Crossover Complexes Based on Tetradentate and Bridging
 Cyanocarbanion Ligands.
;
_journal_issue                   17
_journal_name_full               'Inorganic chemistry'
_journal_page_first              9038
_journal_page_last               9046
_journal_paper_doi               10.1021/acs.inorgchem.6b01542
_journal_volume                  55
_journal_year                    2016
_chemical_formula_moiety         'C56 H36 Fe2 N20'
_chemical_formula_sum            'C56 H36 Fe2 N20'
_chemical_formula_weight         1100.75
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_date             2015-11-09
_audit_creation_method
;
Olex2 1.2
(compiled Sep 16 2015 11:44:03 for OlexSys, GUI svn.r5103)
;
_cell_angle_alpha                90
_cell_angle_beta                 106.492(9)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   10.894(4)
_cell_length_b                   18.7523(9)
_cell_length_c                   13.7750(6)
_cell_measurement_reflns_used    1819
_cell_measurement_temperature    380
_cell_measurement_theta_max      25.251
_cell_measurement_theta_min      3.552
_cell_volume                     2698.3(10)
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      380
_diffrn_detector_area_resol_mean 8
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Bruker SMART APEX CCD area detector'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1462
_diffrn_reflns_av_unetI/netI     0.1987
_diffrn_reflns_Laue_measured_fraction_full 0.995
_diffrn_reflns_Laue_measured_fraction_max 0.995
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            17702
_diffrn_reflns_point_group_measured_fraction_full 0.995
_diffrn_reflns_point_group_measured_fraction_max 0.995
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.251
_diffrn_reflns_theta_min         3.552
_diffrn_source                   'sealed tube'
_exptl_absorpt_coefficient_mu    0.596
_exptl_absorpt_correction_T_max  0.7453
_exptl_absorpt_correction_T_min  0.5926
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2008/1 (Bruker,2008) was used for absorption correction.
wR2(int) was 0.0821 before and 0.0713 after correction.
The Ratio of minimum to maximum transmission is 0.7951.
The \l/2 correction factor is 0.0015.
;
_exptl_crystal_colour            'dark yellow'
_exptl_crystal_colour_modifier   dark
_exptl_crystal_colour_primary    yellow
_exptl_crystal_density_diffrn    1.355
_exptl_crystal_description       prism
_exptl_crystal_F_000             1128
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.277
_refine_diff_density_min         -0.193
_refine_diff_density_rms         0.050
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.998
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     352
_refine_ls_number_reflns         4844
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.998
_refine_ls_R_factor_all          0.2403
_refine_ls_R_factor_gt           0.0768
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0428P)^2^+0.9878P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1121
_refine_ls_wR_factor_ref         0.1485
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1819
_reflns_number_total             4844
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ic6b01542_si_002.cif
_cod_data_source_block           compound1p-380K
_cod_original_cell_volume        2698.3(11)
_cod_database_code               4348722
_shelxl_version_number           2013-4
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
2.a Secondary CH2 refined with riding coordinates:
 C6(H6A,H6B), C7(H7A,H7B), C13(H13A,H13B)
2.b Aromatic/amide H refined with riding coordinates:
 C1(H1), C2(H2), C3(H3), C4(H4), C9(H9), C10(H10), C11(H11), C12(H12),
 C15(H15), C16(H16), C17(H17), C18(H18)
;
_olex2_submission_special_instructions 'No special instructions were received'