Exploring the Roles of Counterions in Redox-active Viologen on Electrochromic Performance
Parashar, Ranjeev Kumar; Kandpal, Suchita; Kamal, Aditya; Bansal, Love; Gupta, Kirti; Kumar, Rajesh; Mondal, Prakash Chandra; Physical Chemistry Chemical Physics  (2025) –; doi:10.1039/D5CP02803E

data_7251241
_publ_section_title
;
 Exploring the Roles of Counterions in Redox-active Viologen on
 Electrochromic Performance
;
_journal_name_full               'Physical Chemistry Chemical Physics'
_journal_paper_doi               10.1039/D5CP02803E
_journal_year                    2025
_chemical_formula_moiety         '2(C2 F6 N O4 S2), C24 H20 Cl2 N2'
_chemical_formula_sum            'C28 H20 Cl2 F12 N4 O8 S4'
_chemical_formula_weight         967.62
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     iterative
_audit_creation_date             2024-07-08
_audit_creation_method
;
Olex2 1.3
(compiled 2020.11.12 svn.r5f609507 for OlexSys, GUI svn.r6226)
;
_audit_update_record
;
2024-07-08 deposited with the CCDC.	2025-11-07 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 113.345(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   27.2732(13)
_cell_length_b                   10.8116(4)
_cell_length_c                   14.0960(6)
_cell_measurement_reflns_used    9930
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      28.33
_cell_measurement_theta_min      2.38
_cell_volume                     3816.2(3)
_computing_cell_refinement       'SAINT V8.38A (Bruker, 2018)'
_computing_data_reduction        'SAINT V8.38A (Bruker, 2018)'
_computing_molecular_graphics    'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2018/3 (Sheldrick, 2015)'
_computing_structure_solution    'olex2.solve 1.3 (Bourhis et al., 2015)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector                 'CCD area detector'
_diffrn_detector_area_resol_mean 7.9
_diffrn_detector_type            'Bruker SMART CCD 1K area detector'
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device       'three-circle diffractometer'
_diffrn_measurement_device_type  'Bruker SMART CCD 1K area detector'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0389
_diffrn_reflns_av_unetI/netI     0.0214
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       36
_diffrn_reflns_limit_h_min       -36
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            39167
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.348
_diffrn_reflns_theta_min         2.052
_diffrn_source                   'sealed X-ray tube'
_diffrn_source_current           0.0
_diffrn_source_power             0.0
_diffrn_source_target            Mo
_diffrn_source_voltage           0.0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.500
_exptl_absorpt_correction_T_max  0.7457
_exptl_absorpt_correction_T_min  0.6187
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.1666 before and 0.0558 after correction.
The Ratio of minimum to maximum transmission is 0.8297.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            'clear yellowish green'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   yellowish
_exptl_crystal_colour_primary    green
_exptl_crystal_density_diffrn    1.684
_exptl_crystal_description       needle
_exptl_crystal_F_000             1944
_exptl_crystal_size_max          0.33
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.11
_refine_diff_density_max         1.516
_refine_diff_density_min         -0.866
_refine_diff_density_rms         0.077
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.039
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     262
_refine_ls_number_reflns         4782
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.039
_refine_ls_R_factor_all          0.0496
_refine_ls_R_factor_gt           0.0434
_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^)+(0.0464P)^2^+12.6103P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1069
_refine_ls_wR_factor_ref         0.1122
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4219
_reflns_number_total             4782
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d5cp02803e2.cif
_cod_data_source_block           19juna_a
_cod_database_code               7251241
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.947
_shelx_estimated_absorpt_t_min   0.852
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
2.a Secondary CH2 refined with riding coordinates:
 C00L(H00A,H00B)
2.b Aromatic/amide H refined with riding coordinates:
 C00I(H00I), C00J(H00J), C00K(H00K), C00M(H00M), C00N(H00N), C00O(H00O),
 C00P(H00P), C00Q(H00Q)
;
_shelx_res_checksum              1034
_olex2_submission_special_instructions 'No special instructions were received'