Effect of the cation structure on the properties of homobaric imidazolium ionic liquids
Koutsoukos, Spyridon; Philippi, Frederik; Rauber, Daniel; Pugh, David; Kay, Christopher William Michael; Welton, Tom; Physical Chemistry Chemical Physics  (2022) –; doi:10.1039/D1CP05169E

data_7244551
_publ_section_title
;
 Effect of the cation structure on the properties of homobaric imidazolium
 ionic liquids
;
_journal_name_full               'Physical Chemistry Chemical Physics'
_journal_paper_doi               10.1039/D1CP05169E
_journal_year                    2022
_chemical_formula_moiety         'C2 F6 N O4 S2, C7 H10 N3'
_chemical_formula_sum            'C9 H10 F6 N4 O4 S2'
_chemical_formula_weight         416.33
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     iterative
_audit_creation_date             2021-06-23
_audit_creation_method
;
Olex2 1.3
(compiled 2020.02.04 svn.rd84adfe8 for OlexSys, GUI svn.r6032)
;
_audit_update_record
;
2021-11-03 deposited with the CCDC.	2022-02-28 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90.599(8)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   13.0861(12)
_cell_length_b                   16.2425(13)
_cell_length_c                   15.1289(14)
_cell_measurement_reflns_used    1679
_cell_measurement_temperature    173.00(14)
_cell_measurement_theta_max      27.8950
_cell_measurement_theta_min      3.1050
_cell_volume                     3215.5(5)
_computing_cell_refinement       'CrysAlisPro 1.171.38.46 (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.38.46 (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro 1.171.38.46 (Rigaku OD, 2015)'
_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
;
Superflip  (Palatinus & Chapuis, 2007;Palatinus & van der Lee, 2008;
Palatinus et al., 2012)
;
_diffrn_ambient_environment      N~2~
_diffrn_ambient_temperature      173.00(14)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 16.0382
_diffrn_detector_type            Eos
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.835
_diffrn_measurement_details
;
List of Runs (angles in degrees, time in seconds):

  # Type    Start    End  Width  t~exp~   \w     \q     \k     \f   Frames
  1  \w    -38.00  51.00   1.00    1.00    --  -13.33  77.00  30.00   89
  2  \w    -79.00  12.00   1.00    1.00    --  -13.33 -77.00 -90.00   91
  3  \w     -2.00  82.00   1.00    1.00    --   14.43  57.00-180.00   84
;
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'Xcalibur, Eos'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_type
'CrysAlisPro convention (1999,Acta A55,543-557)'
_diffrn_orient_matrix_UB_11      0.0063109000
_diffrn_orient_matrix_UB_12      -0.0482126000
_diffrn_orient_matrix_UB_13      -0.0927195000
_diffrn_orient_matrix_UB_21      -0.0432595000
_diffrn_orient_matrix_UB_22      0.0154604000
_diffrn_orient_matrix_UB_23      -0.0300069000
_diffrn_orient_matrix_UB_31      0.0131618000
_diffrn_orient_matrix_UB_32      0.0739370000
_diffrn_orient_matrix_UB_33      -0.0541867000
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0443
_diffrn_reflns_av_unetI/netI     0.0516
_diffrn_reflns_Laue_measured_fraction_full 0.995
_diffrn_reflns_Laue_measured_fraction_max 0.835
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            20094
_diffrn_reflns_point_group_measured_fraction_full 0.995
_diffrn_reflns_point_group_measured_fraction_max 0.835
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.290
_diffrn_reflns_theta_min         2.401
_diffrn_source                   'fine-focus sealed X-ray tube'
_diffrn_source_type              'Enhance (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    0.421
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.20358
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.38.46 (Rigaku Oxford Diffraction, 2015)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.720
_exptl_crystal_description       plate
_exptl_crystal_F_000             1680
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.05
_refine_diff_density_max         1.246
_refine_diff_density_min         -0.539
_refine_diff_density_rms         0.120
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.031
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     456
_refine_ls_number_reflns         6677
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      1.036
_refine_ls_R_factor_all          0.1023
_refine_ls_R_factor_gt           0.0797
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.1487P)^2^+6.3520P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2154
_refine_ls_wR_factor_ref         0.2478
_reflns_Friedel_coverage         0.000
_reflns_number_gt                5185
_reflns_number_total             6677
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d1cp05169e5.cif
_cod_data_source_block           '[NC2C1im][NTf2]'
_cod_database_code               7244551
_shelx_shelxl_version_number     2018/3
_chemical_oxdiff_formula         'C6 H8 Br N3'
_chemical_oxdiff_usercomment     SK57_EtOH
_shelx_estimated_absorpt_t_max   0.979
_shelx_estimated_absorpt_t_min   0.940
_reflns_odcompleteness_completeness 99.88
_reflns_odcompleteness_iscentric 1
_reflns_odcompleteness_theta     24.97
_olex2_refinement_description
;
1. Twinned data refinement
 Scales: 0.750(3)
 0.250(3)
2. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
3. Uiso/Uaniso restraints and constraints
Uanis(F6) \\sim Ueq: with sigma of 0.05 and sigma for terminal atoms of 0.01
4.a Secondary CH2 refined with riding coordinates:
 C15(H15A,H15B), C5(H5A,H5B)
4.b Aromatic/amide H refined with riding coordinates:
 C13(H13), C14(H14), C3(H3), C4(H4)
4.c Idealised Me refined as rotating group:
 C11(H11A,H11B,H11C), C18(H18A,H18B,H18C), C1(H1A,H1B,H1C), C8(H8A,H8B,H8C)
;
_smtbx_masks_void_probe_radius   1.2
_smtbx_masks_void_truncation_radius 1.2
_shelx_res_checksum              86705
_olex2_submission_special_instructions 'No special instructions were received'
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
;
_oxdiff_exptl_absorpt_empirical_full_max 3.279
_oxdiff_exptl_absorpt_empirical_full_min 0.634