Probing semiconductivity in crystals of stable semiquinone radicals: organic salts of 5,6-dichloro-2,3-dicyanosemiquinone (DDQ) radical anions
Molčanov, Krešimir; Stalke, Dietmar; Šantić, Ana; Demeshko, Serhiy; Stilinović, Vladimir; Mou, Zhongyu; Kertesz, Miklos; Kojić-Prodić, Biserka; CrystEngComm 20 (2018) 1862–; doi:10.1039/C7CE02146A

data_7230156
_publ_section_title
;
 Probing semiconductivity in crystals of stable semiquinone radicals:
 organic salts of 5,6-dichloro-2,3-dicyanosemiquinone (DDQ) radical anions
;
_journal_issue                   13
_journal_name_full               CrystEngComm
_journal_page_first              1862
_journal_paper_doi               10.1039/C7CE02146A
_journal_volume                  20
_journal_year                    2018
_chemical_formula_moiety         'C8 Cl2 N2 O2, C7 H9 N2 O'
_chemical_formula_sum            'C15 H9 Cl2 N4 O3'
_chemical_formula_weight         364.16
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_date             2017-11-08T12:37:48-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_audit_update_record
;
2017-11-08 deposited with the CCDC.
2018-02-13 downloaded from the CCDC.
;
_cell_angle_alpha                87.618(4)
_cell_angle_beta                 79.679(4)
_cell_angle_gamma                75.627(5)
_cell_formula_units_Z            2
_cell_length_a                   6.8797(4)
_cell_length_b                   10.4684(6)
_cell_length_c                   11.0184(4)
_cell_measurement_reflns_used    3296
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      75.5984
_cell_measurement_theta_min      4.0748
_cell_volume                     756.26(7)
_computing_cell_refinement
;
        CrysAlisPro, Agilent Technologies,
        Version 1.171.36.20 (release 27-06-2012 CrysAlis171 .NET)
        (compiled Jul 11 2012,15:38:31)
;
_computing_data_collection
;
        CrysAlisPro, Agilent Technologies,
        Version 1.171.36.20 (release 27-06-2012 CrysAlis171 .NET)
        (compiled Jul 11 2012,15:38:31)
;
_computing_data_reduction
;
        CrysAlisPro, Agilent Technologies,
        Version 1.171.36.20 (release 27-06-2012 CrysAlis171 .NET)
        (compiled Jul 11 2012,15:38:31)
;
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-2017/1 (Sheldrick, 2017)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 10.4323
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.978
_diffrn_measurement_device_type  'Xcalibur, Ruby, Nova'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0281
_diffrn_reflns_av_unetI/netI     0.0338
_diffrn_reflns_Laue_measured_fraction_full 0.994
_diffrn_reflns_Laue_measured_fraction_max 0.978
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            6225
_diffrn_reflns_point_group_measured_fraction_full 0.994
_diffrn_reflns_point_group_measured_fraction_max 0.978
_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         75.785
_diffrn_reflns_theta_min         4.078
_exptl_absorpt_coefficient_mu    4.117
_exptl_absorpt_correction_T_max  1
_exptl_absorpt_correction_T_min  0.83336
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
        CrysAlisPro, Agilent Technologies,
        Version 1.171.36.20 (release 27-06-2012 CrysAlis171 .NET)
        (compiled Jul 11 2012,15:38:31)
        Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    1.608
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             372
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.11
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.407
_refine_diff_density_min         -0.465
_refine_diff_density_rms         0.055
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.095
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     224
_refine_ls_number_reflns         3075
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.095
_refine_ls_R_factor_all          0.048
_refine_ls_R_factor_gt           0.0456
_refine_ls_shift/su_max          0
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0785P)^2^+0.2032P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.137
_reflns_number_gt                2838
_reflns_number_total             3075
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c7ce02146a2.cif
_cod_data_source_block           ddq_niac_2
_cod_depositor_comments
'Adding full bibliography for 7230151--7230160.cif.'
_cod_database_code               7230156