A Supercooled Imidazolium Iodide Ionic Liquid as a Low-Viscosity Electrolyte for Dye-Sensitized Solar Cells
Fei, Zhaofu; Kuang, Daibin; Zhao, Dongbin; Klein, Cedric; Ang, Wee Han; Zakeeruddin, Shaik M.; Grätzel, Michael; Dyson, Paul J.; Inorganic Chemistry 45 (2006) 10407–10409; doi:10.1021/ic061232n

data_4333004
_publ_section_title
;
 A Supercooled Imidazolium Iodide Ionic Liquid as a Low-Viscosity
 Electrolyte for Dye-Sensitized Solar Cells
;
_journal_issue                   26
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              10407
_journal_page_last               10409
_journal_paper_doi               10.1021/ic061232n
_journal_volume                  45
_journal_year                    2006
_chemical_formula_moiety         'C8 H13 N2, I'
_chemical_formula_sum            'C8 H13 I N2'
_chemical_formula_weight         264.10
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.5957(14)
_cell_length_b                   9.8637(15)
_cell_length_c                   12.232(2)
_cell_measurement_reflns_used    4134
_cell_measurement_temperature    140(2)
_cell_measurement_theta_max      27.5525
_cell_measurement_theta_min      2.6176
_cell_volume                     1037.1(3)
_computing_cell_refinement       'Oxford Diffraction CrysAlis RED'
_computing_data_collection       'Oxford Diffraction CrysAlis CCD'
_computing_data_reduction        'Oxford Diffraction CrysAlis RED'
_computing_molecular_graphics    'Crystal Impact DIAMOND'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SiR92 (Altomare et al, 1993)'
_diffrn_ambient_temperature      140(2)
_diffrn_measured_fraction_theta_full 0.970
_diffrn_measured_fraction_theta_max 0.970
_diffrn_measurement_device_type  'Oxford Diffraction KM4/Sapphire CCD'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0986
_diffrn_reflns_av_sigmaI/netI    0.0808
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            6257
_diffrn_reflns_theta_full        25.02
_diffrn_reflns_theta_max         25.02
_diffrn_reflns_theta_min         3.14
_exptl_absorpt_coefficient_mu    3.035
_exptl_absorpt_correction_T_max  0.7400
_exptl_absorpt_correction_T_min  0.3000
_exptl_absorpt_correction_type   refdelf
_exptl_absorpt_process_details
;
(See: Walker, N. & Stuart, D. (1983) Acta Cryst. A39, 158-166)
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.691
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       irregular
_exptl_crystal_F_000             512
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.17
_refine_diff_density_max         1.222
_refine_diff_density_min         -1.670
_refine_diff_density_rms         0.190
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.04(8)
_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     101
_refine_ls_number_reflns         1785
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.031
_refine_ls_R_factor_all          0.0589
_refine_ls_R_factor_gt           0.0517
_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^)+(0.0625P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1121
_refine_ls_wR_factor_ref         0.1151
_reflns_number_gt                1546
_reflns_number_total             1785
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic061232nsup1.cif
_cod_data_source_block           2a_pd336
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               4333004