Formation of Ionic Co-Crystals of Amphoteric Azoles Directed by the Ionic Liquid Co-Former 1-Ethyl-3-Methylimidazolium Acetate
Titi, Hatem M.; Kelley, Steven Paul; Easton, Max; Emerson, Stephen D.; Rogers, Robin D.; Chem. Commun.  (2017) –; doi:10.1039/C7CC04429A

data_7120418
_publ_section_title
;
 Formation of Ionic Co-Crystals of Amphoteric Azoles Directed by the Ionic
 Liquid Co-Former 1-Ethyl-3-Methylimidazolium Acetate
;
_journal_name_full               'Chem. Commun.'
_journal_paper_doi               10.1039/C7CC04429A
_journal_year                    2017
_chemical_formula_sum            'C16 H14 N10'
_chemical_formula_weight         346.37
_chemical_name_systematic
'1-ethyl-3-methylimdazolium 4,5-dicyanoimidazolate 4,5-dicyanoimidazole'
_space_group_crystal_system      orthorhombic
_space_group_IT_number           61
_space_group_name_Hall           '-P 2ac 2ab'
_space_group_name_H-M_alt        'P b c a'
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     interative
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2017-06-01 deposited with the CCDC.
2017-07-11 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   13.409(2)
_cell_length_b                   7.1954(12)
_cell_length_c                   36.229(6)
_cell_measurement_reflns_used    6096
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      26.457
_cell_measurement_theta_min      2.714
_cell_volume                     3495.5(10)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.995
_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  0.1018
_diffrn_reflns_av_unetI/netI     0.0528
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.995
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       45
_diffrn_reflns_limit_l_min       -45
_diffrn_reflns_number            29169
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.995
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.457
_diffrn_reflns_theta_min         2.714
_exptl_absorpt_coefficient_mu    0.089
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker AXScale'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.316
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             1440
_exptl_crystal_size_max          0.400
_exptl_crystal_size_mid          0.200
_exptl_crystal_size_min          0.200
_exptl_transmission_factor_max   0.7454
_exptl_transmission_factor_min   0.5190
_refine_diff_density_max         0.314
_refine_diff_density_min         -0.314
_refine_diff_density_rms         0.062
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.023
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     241
_refine_ls_number_reflns         3577
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.023
_refine_ls_R_factor_all          0.0717
_refine_ls_R_factor_gt           0.0499
_refine_ls_shift/su_max          0.007
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0671P)^2^+1.3034P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1170
_refine_ls_wR_factor_ref         0.1290
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2733
_reflns_number_total             3577
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c7cc04429a2.cif
_cod_data_source_block           ti25
_cod_original_cell_volume        3495.6(10)
_cod_database_code               7120418
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.965
_shelx_estimated_absorpt_t_max   0.982
_shelx_res_checksum              6916