Revisiting ether-derivatized imidazolium-based ionic liquids.
Fei, Zhaofu; Ang, Wee Han; Zhao, Dongbin; Scopelliti, Rosario; Zvereva, Elena E.; Katsyuba, Sergey A.; Dyson, Paul J.; The journal of physical chemistry. B 111 (2007) 10095–10108; doi:10.1021/jp073419l

data_1505092
_publ_section_title
;
 Revisiting ether-derivatized imidazolium-based ionic liquids.
;
_journal_issue                   34
_journal_name_full               'The journal of physical chemistry. B'
_journal_page_first              10095
_journal_page_last               10108
_journal_paper_doi               10.1021/jp073419l
_journal_volume                  111
_journal_year                    2007
_chemical_formula_moiety         'C9 H17 N2 O2, I'
_chemical_formula_sum            'C9 H17 I N2 O2'
_chemical_formula_weight         312.15
_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                 103.711(12)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.7948(13)
_cell_length_b                   13.0859(12)
_cell_length_c                   9.9372(14)
_cell_measurement_reflns_used    4463
_cell_measurement_temperature    140(2)
_cell_measurement_theta_max      26.82
_cell_measurement_theta_min      2.62
_cell_volume                     1237.4(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 0.842
_diffrn_measured_fraction_theta_max 0.842
_diffrn_measurement_device_type  'Oxford Diffraction KM4/Sapphire CCD'
_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  0.0759
_diffrn_reflns_av_sigmaI/netI    0.0477
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            8950
_diffrn_reflns_theta_full        29.22
_diffrn_reflns_theta_max         29.22
_diffrn_reflns_theta_min         3.11
_exptl_absorpt_coefficient_mu    2.569
_exptl_absorpt_correction_T_max  0.7310
_exptl_absorpt_correction_T_min  0.2850
_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    1.676
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             616
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.19
_refine_diff_density_max         1.424
_refine_diff_density_min         -1.740
_refine_diff_density_rms         0.165
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.166
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     185
_refine_ls_number_reflns         2830
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.166
_refine_ls_R_factor_all          0.0578
_refine_ls_R_factor_gt           0.0498
_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^)+(0.0760P)^2^+1.4303P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1355
_refine_ls_wR_factor_ref         0.1400
_reflns_number_gt                2370
_reflns_number_total             2830
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jp073419lsi20070504_092028.cif
_cod_data_source_block           5I_pd341
_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 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               1505092