Structure and Properties of High Stability Geminal Dicationic Ionic Liquids
Jared L. Anderson; Rongfang Ding; Arkady Ellern; Daniel W. Armstrong; Journal of the American Chemical Society 127 (2005) 593–604; doi:10.1021/ja046521u

data_4111398
_publ_section_title
;
 Structure and Properties of High Stability Geminal Dicationic Ionic
 Liquids
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_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              593
_journal_page_last               604
_journal_paper_doi               10.1021/ja046521u
_journal_volume                  127
_journal_year                    2005
_chemical_formula_sum            'C11 H18 Br2 N4'
_chemical_formula_weight         366.11
_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                76.565(2)
_cell_angle_beta                 80.455(2)
_cell_angle_gamma                84.162(2)
_cell_formula_units_Z            2
_cell_length_a                   5.0921(7)
_cell_length_b                   11.1143(14)
_cell_length_c                   13.5598(17)
_cell_measurement_reflns_used    978
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.28
_cell_measurement_theta_min      3.28
_cell_volume                     734.48(17)
_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      293(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.925
_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  0.0380
_diffrn_reflns_av_sigmaI/netI    0.0529
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            6276
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         28.26
_diffrn_reflns_theta_min         1.56
_exptl_absorpt_coefficient_mu    5.505
_exptl_absorpt_correction_T_max  1
_exptl_absorpt_correction_T_min  0.79
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker SADABS'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.655
_exptl_crystal_density_meas      ?
_exptl_crystal_description       plate
_exptl_crystal_F_000             364
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.3
_exptl_crystal_size_min          0.3
_refine_diff_density_max         1.019
_refine_diff_density_min         -0.690
_refine_diff_density_rms         0.112
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.065
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     156
_refine_ls_number_reflns         3360
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.065
_refine_ls_R_factor_all          0.0513
_refine_ls_R_factor_gt           0.0406
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0647P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1065
_refine_ls_wR_factor_ref         0.1134
_reflns_number_gt                2778
_reflns_number_total             3360
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja046521usi20040611_113830.cif
_cod_data_source_block           arm06
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'none' was changed to '?' - the
value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
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_cod_original_cell_volume        734.49(17)
_cod_database_code               4111398