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_7230154
_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, C5 H6 N'
_chemical_formula_sum            'C13 H6 Cl2 N3 O2'
_chemical_formula_weight         307.11
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_audit_creation_date             2014-12-04T13:23:27-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_audit_update_record
;
2017-11-06 deposited with the CCDC.
2018-02-13 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 98.678(8)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.1343(7)
_cell_length_b                   15.8940(14)
_cell_length_c                   11.5190(11)
_cell_measurement_reflns_used    2426
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      75.8212
_cell_measurement_theta_min      3.8787
_cell_volume                     1291.2(2)
_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-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.978
_diffrn_measured_fraction_theta_max 0.978
_diffrn_measurement_device_type  'Xcalibur, Ruby, Nova'
_diffrn_measurement_method       'CCD, \w scans'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0359
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            6048
_diffrn_reflns_theta_full        75.9
_diffrn_reflns_theta_max         75.9
_diffrn_reflns_theta_min         4.78
_exptl_absorpt_coefficient_mu    4.579
_exptl_absorpt_correction_T_max  1
_exptl_absorpt_correction_T_min  0.42342
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            'dark red'
_exptl_crystal_density_diffrn    1.58
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             620
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.06
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.387
_refine_diff_density_min         -0.3
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.04
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     181
_refine_ls_number_reflns         2625
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.04
_refine_ls_R_factor_gt           0.0527
_refine_ls_shift/su_max          0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1078P)^2^+0.0782P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.1669
_reflns_number_gt                2122
_reflns_number_total             2625
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c7ce02146a2.cif
_cod_data_source_block           ddq-py_1
_cod_depositor_comments
'Adding full bibliography for 7230151--7230160.cif.'
_cod_database_code               7230154