Unipolar to ambipolar semiconductivity switching in charge transfer cocrystals of 2,7-di-tert-butylpyrene
Mandal, Arkalekha; Swain, Pravasini; Nath, Bhaskar; Sau, Sudip; Mal, Prasenjit; CrystEngComm 21 (2019) 981–; doi:10.1039/C8CE01806E

data_7232112
_publ_section_title
;
 Unipolar to ambipolar semiconductivity switching in charge transfer
 cocrystals of 2,7-di-tert-butylpyrene
;
_journal_issue                   6
_journal_name_full               CrystEngComm
_journal_page_first              981
_journal_paper_doi               10.1039/C8CE01806E
_journal_volume                  21
_journal_year                    2019
_chemical_formula_sum            'C18 H15 N2'
_chemical_formula_weight         259.32
_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   constr
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2018-05-02 deposited with the CCDC.
2018-12-27 downloaded from the CCDC.
;
_cell_angle_alpha                97.057(2)
_cell_angle_beta                 97.633(2)
_cell_angle_gamma                96.111(2)
_cell_formula_units_Z            2
_cell_length_a                   6.9929(2)
_cell_length_b                   9.6745(3)
_cell_length_c                   10.9094(3)
_cell_measurement_reflns_used    2600
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      67.44
_cell_measurement_theta_min      4.13
_cell_volume                     720.29(4)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0331
_diffrn_reflns_av_sigmaI/netI    0.0246
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            10553
_diffrn_reflns_theta_full        67.44
_diffrn_reflns_theta_max         67.44
_diffrn_reflns_theta_min         4.13
_exptl_absorpt_coefficient_mu    0.548
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.898
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            blue
_exptl_crystal_density_diffrn    1.196
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             274
_exptl_crystal_size_max          0.38
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.306
_refine_diff_density_min         -0.436
_refine_diff_density_rms         0.128
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.004
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     184
_refine_ls_number_reflns         2600
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.004
_refine_ls_R_factor_all          0.0629
_refine_ls_R_factor_gt           0.0585
_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^)+(0.1203P)^2^+0.0706P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1601
_refine_ls_wR_factor_ref         0.1667
_reflns_number_gt                2260
_reflns_number_total             2600
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c8ce01806e2.cif
_cod_data_source_block           Cocrystal1
_cod_depositor_comments
'Adding full bibliography for 7232112--7232114.cif.'
_cod_database_code               7232112