Design and synthesis of novel chiral spiro ionic liquids.
Patil, Mahesh L.; Rao, C. V. Laxman; Yonezawa, Kohji; Takizawa, Shinobu; Onitsuka, Kiyotaka; Sasai, Hiroaki; Organic letters 8 (2006) 227–230; doi:10.1021/ol052466y

data_1505821
_publ_section_title
;
 Design and synthesis of novel chiral spiro ionic liquids.
;
_journal_issue                   2
_journal_name_full               'Organic letters'
_journal_page_first              227
_journal_page_last               230
_journal_paper_doi               10.1021/ol052466y
_journal_volume                  8
_journal_year                    2006
_chemical_formula_sum            'C17 H18 F12 N6 O8 S4'
_chemical_formula_weight         790.59
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_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      15
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_cell_angle_alpha                90
_cell_angle_beta                 92.00(5)
_cell_angle_gamma                90
_cell_formula_units_Z            4
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_cell_length_b                   9.62(1)
_cell_length_c                   22.15(1)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293.2
_cell_measurement_theta_max      12.5
_cell_measurement_theta_min      11.0
_cell_volume                     3015(4)
_computing_cell_refinement       'MSC/AFC Diffractometer Control'
_computing_data_collection       'MSC/AFC Diffractometer Control'
_computing_data_reduction        'teXsan Ver. 1.11'
_computing_publication_material  'teXsan Ver. 1.11'
_computing_structure_refinement  'teXsan Ver. 1.10'
_computing_structure_solution    SIR92
_diffrn_measurement_device_type  'Rigaku AFC7R'
_diffrn_measurement_method       \w-2\q
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.7107
_diffrn_reflns_av_R_equivalents  0.131
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       0
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_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -31
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_diffrn_reflns_theta_full        30
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_diffrn_standards_decay_%        0.28
_diffrn_standards_interval_count 150
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.441
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.887
_exptl_absorpt_correction_type   psi-scan
_exptl_absorpt_process_details   '(North, Phillips & Mathews, 1968)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.740
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prismatic
_exptl_crystal_size_max          0.380
_exptl_crystal_size_mid          0.380
_exptl_crystal_size_min          0.250
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_refine_diff_density_min         -0.34
_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    noref
_refine_ls_number_parameters     213
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_refine_ls_R_factor_gt           0.0652
_refine_ls_shift/su_max          0.0004
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^) + (0.05800(Max(Fo^2^,0) + 2Fc^2^)/3)^2^]'
_refine_ls_weighting_scheme      calc
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_cod_original_cell_volume        3017(4)
_cod_original_formula_sum        'C17 H18 F12 N6 O8 S4 '
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