Amidinium based ionic liquids
Dechambenoit, Pierre; Ferlay, Sylvie; Kyritsakas, Nathalie; Hosseini, Mir Wais; New Journal of Chemistry 34 (2010) 1184–; doi:10.1039/b9nj00625g

data_7053405
_publ_section_title
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 Amidinium based ionic liquids
;
_journal_issue                   6
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              1184
_journal_paper_doi               10.1039/b9nj00625g
_journal_volume                  34
_journal_year                    2010
_chemical_formula_moiety         'C22 H36 I2 N4'
_chemical_formula_sum            'C22 H36 I2 N4'
_chemical_formula_weight         610.35
_chemical_name_systematic
;
?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_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                 98.824(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   7.6986(4)
_cell_length_b                   13.1654(8)
_cell_length_c                   12.2445(8)
_cell_measurement_reflns_used    6473
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      29.37
_cell_measurement_theta_min      2.93
_cell_volume                     1226.35(13)
_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 0.983
_diffrn_measured_fraction_theta_max 0.983
_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  0.0368
_diffrn_reflns_av_sigmaI/netI    0.0294
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            19439
_diffrn_reflns_theta_full        30.06
_diffrn_reflns_theta_max         30.06
_diffrn_reflns_theta_min         2.94
_exptl_absorpt_coefficient_mu    2.579
_exptl_absorpt_correction_T_max  0.8819
_exptl_absorpt_correction_T_min  0.7825
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.653
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             604
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.05
_refine_diff_density_max         1.474
_refine_diff_density_min         -0.928
_refine_diff_density_rms         0.110
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.090
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     126
_refine_ls_number_reflns         3545
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.090
_refine_ls_R_factor_all          0.0406
_refine_ls_R_factor_gt           0.0313
_refine_ls_shift/su_max          0.004
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0556P)^2^+0.1966P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0889
_refine_ls_wR_factor_ref         0.0928
_reflns_number_gt                2903
_reflns_number_total             3545
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b9nj00625g.txt
_cod_data_source_block           e510a
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 

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 
;
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               7053405