Incorporating Spacer Molecules into the Tetrathiafulvalene-p-Chloranil Charge-Transfer Framework: Modulating the Neutral-Ionic Phase Transition.
Takahashi, Yukihiro; Takehisa, Mika; Tanaka, Eri; Harada, Jun; Kumai, Reiji; Inabe, Tamotsu; The journal of physical chemistry letters  (2020) 1336–; doi:10.1021/acs.jpclett.9b03847

data_8000401
_publ_section_title
;
 Incorporating Spacer Molecules into the Tetrathiafulvalene-p-Chloranil
 Charge-Transfer Framework: Modulating the Neutral-Ionic Phase Transition.
;
_journal_name_full               'The journal of physical chemistry letters'
_journal_page_first              1336
_journal_paper_doi               10.1021/acs.jpclett.9b03847
_journal_year                    2020
_chemical_formula_moiety         'C6 H4 S4, 2(C6 Cl4 O2), C20 H12'
_chemical_formula_sum            'C38 H16 Cl8 O4 S4'
_chemical_formula_weight         948.35
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2017-03-02
_audit_creation_method
;
Olex2 1.2
(compiled 2017.02.23 svn.r3390 for OlexSys, GUI svn.r5320)
;
_cell_angle_alpha                98.1455(10)
_cell_angle_beta                 93.3158(9)
_cell_angle_gamma                92.2872(10)
_cell_formula_units_Z            1
_cell_length_a                   7.6555(5)
_cell_length_b                   7.6969(5)
_cell_length_c                   15.9629(10)
_cell_measurement_reflns_used    9994
_cell_measurement_temperature    300
_cell_measurement_theta_max      29.98
_cell_measurement_theta_min      2.58
_cell_volume                     928.44(10)
_computing_cell_refinement       'SAINT v8.34A (Bruker, 2013)'
_computing_data_collection       'Bruker APEX2 2014.1-1 (Bruker, 2014)'
_computing_data_reduction        'SAINT v8.34A (Bruker, 2013)'
_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      300
_diffrn_detector_area_resol_mean 8.3333
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0155
_diffrn_reflns_av_unetI/netI     0.0127
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.996
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            20944
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.996
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         30.032
_diffrn_reflns_theta_min         2.583
_diffrn_source                   'rotating-anode X-ray tube'
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.876
_exptl_absorpt_correction_T_max  0.9420
_exptl_absorpt_correction_T_min  0.8972
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2014/4 (Bruker,2014/4) was used for absorption correction. wR2(int) was 0.0616 before and 0.0302 after correction. The Ratio of minimum to maximum transmission is 0.9524. The \l/2 correction factor is Not present.'
_exptl_crystal_colour            green
_exptl_crystal_colour_primary    green
_exptl_crystal_density_diffrn    1.696
_exptl_crystal_description       plate
_exptl_crystal_F_000             476
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.07
_exptl_crystal_size_min          0.03
_refine_diff_density_max         0.409
_refine_diff_density_min         -0.266
_refine_diff_density_rms         0.046
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.032
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     244
_refine_ls_number_reflns         5403
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.032
_refine_ls_R_factor_all          0.0359
_refine_ls_R_factor_gt           0.0298
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0430P)^2^+0.2393P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0807
_refine_ls_wR_factor_ref         0.0859
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4653
_reflns_number_total             5403
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jz9b03847_si_002.cif
_cod_data_source_block           (TTF)(perylene)(CA)2_300K
_cod_database_code               8000401
_shelxl_version_number           2014/6
_shelx_estimated_absorpt_t_max   0.974
_shelx_estimated_absorpt_t_min   0.880
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
2.a Aromatic/amide H refined with riding coordinates:
 C2(H2), C3(H3), C10(H10), C11(H11), C12(H12), C13(H13), C14(H14), C15(H15)
;
_olex2_submission_special_instructions 'No special instructions were received'