Cation radical salts of cyano(ethylenedithio)tetrathiafulvalene with halogenated anions: annihilation of the CN···Hal interaction and stabilisation of conducting, antiferromagnetic square or chain-type salts
Thomas Devic; Josep N. Bertran; Benoît Domercq; Enric Canadell; Narcis Avarvari; Pascale Auban-Senzier; Marc Fourmigué; New J. Chem. 25 (2001) 1418–1424; doi:10.1039/b104640n

data_7051187
_publ_section_title
;
 Cation radical salts of cyano(ethylenedithio)tetrathiafulvalene with
 halogenated anions: annihilation of the CN&#x00B7;&#x00B7;&#x00B7;Hal
 interaction and stabilisation of conducting, antiferromagnetic square
 or chain-type salts
;
_journal_issue                   11
_journal_name_full               'New J. Chem.'
_journal_page_first              1418
_journal_page_last               1424
_journal_paper_doi               10.1039/b104640n
_journal_volume                  25
_journal_year                    2001
_chemical_formula_moiety         'C9H5NS6, FeBr4'
_chemical_formula_sum            'C9 H5 Br4 Fe N S6'
_chemical_formula_weight         694.99
_chemical_name_common            'EDT-TTF-CN, FeBr4'
_chemical_name_systematic
; 
3-cyano -3',4'-ethylenedithiotetrathiafulvalene, tetrabromoferrate (III)  
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 106.52(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   6.2930(13)
_cell_length_b                   28.506(6)
_cell_length_c                   11.126(2)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      17.89
_cell_measurement_theta_min      9.31
_cell_volume                     1913.5(7)
_computing_cell_refinement       'CAD4 EXPRESS'
_computing_data_collection       'CAD4 EXPRESS'
_computing_data_reduction        'XCAD4 [Harms, 1993)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Enraf Nonius CAD4'
_diffrn_measurement_method       w--2q
_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  0.1134
_diffrn_reflns_av_sigmaI/netI    0.0719
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       35
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            3859
_diffrn_reflns_theta_full        25.97
_diffrn_reflns_theta_max         25.97
_diffrn_reflns_theta_min         1.43
_diffrn_standards_decay_%        0
_diffrn_standards_interval_time  60
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    9.785
_exptl_absorpt_correction_T_max  0.12123
_exptl_absorpt_correction_T_min  0.03499
_exptl_absorpt_correction_type   psi-scan
_exptl_absorpt_process_details   SHELXTL
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    2.412
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1312
_exptl_crystal_size_max          0.48
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.931
_refine_diff_density_min         -1.006
_refine_diff_density_rms         0.197
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.637
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     190
_refine_ls_number_reflns         3757
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.637
_refine_ls_R_factor_all          0.1397
_refine_ls_R_factor_gt           0.0486
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0260P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0938
_refine_ls_wR_factor_ref         0.1043
_reflns_number_gt                2124
_reflns_number_total             3757
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b104640n.txt
_cod_data_source_block           tde41cm
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7051187