Strategies toward the design of energetic ionic liquids: nitro- and nitrile-substituted N,N′-dialkylimidazolium salts
Katritzky, Alan R.; Yang, Hongfang; Zhang, Dazhi; Kirichenko, Kostyantyn; Smiglak, Marcin; Holbrey, John D.; Reichert, W. Matthew; Rogers, Robin D.; New Journal of Chemistry 30 (2006) 349–; doi:10.1039/b509260d

data_7051513
_publ_section_title
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 Strategies toward the design of energetic ionic liquids: nitro- and
 nitrile-substituted N,N&#x2032;-dialkylimidazolium salts
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_journal_issue                   3
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              349
_journal_paper_doi               10.1039/b509260d
_journal_volume                  30
_journal_year                    2006
_chemical_formula_sum            'C8 H10 F6 N4 O6 S2'
_chemical_formula_weight         436.32
_chemical_name_common            '1,2,3 trimethyl-4 nitroimidazolium NTf2'
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                70.065(5)
_cell_angle_beta                 81.042(5)
_cell_angle_gamma                77.570(5)
_cell_formula_units_Z            4
_cell_length_a                   8.113(2)
_cell_length_b                   12.596(4)
_cell_length_c                   17.035(5)
_cell_measurement_reflns_used    1007
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      23.31
_cell_measurement_theta_min      2.98
_cell_volume                     1591.7(8)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.951
_diffrn_measured_fraction_theta_max 0.951
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0183
_diffrn_reflns_av_sigmaI/netI    0.0330
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            6545
_diffrn_reflns_theta_full        23.36
_diffrn_reflns_theta_max         23.36
_diffrn_reflns_theta_min         1.28
_exptl_absorpt_coefficient_mu    0.438
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.8238
_exptl_absorpt_correction_type   sphere
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.821
_exptl_crystal_density_meas      0
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             880
_exptl_crystal_size_max          0.64
_exptl_crystal_size_mid          0.32
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.384
_refine_diff_density_min         -0.291
_refine_diff_density_rms         0.052
_refine_ls_extinction_coef       0.0007(3)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.040
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     550
_refine_ls_number_reflns         4389
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.040
_refine_ls_R_factor_all          0.0505
_refine_ls_R_factor_gt           0.0355
_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^)+(0.0415P)^2^+1.1244P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0839
_refine_ls_wR_factor_ref         0.0924
_reflns_number_gt                3501
_reflns_number_total             4389
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b509260d.txt
_cod_data_source_block           7b
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7051513