New hydrogen carbonate precursors for efficient and byproduct-free syntheses of ionic liquids based on 1,2,3-trimethylimidazolium and N,N-dimethylpyrrolidinium cores
Smiglak, Marcin; Hines, C. Corey; Rogers, Robin D.; Green Chemistry 12 (2010) 491–; doi:10.1039/b920003g

data_7212126
_publ_section_title
;
 New hydrogen carbonate precursors for efficient and byproduct-free
 syntheses of ionic liquids based on 1,2,3-trimethylimidazolium and
 N,N-dimethylpyrrolidinium cores
;
_journal_issue                   3
_journal_name_full               'Green Chemistry'
_journal_page_first              491
_journal_paper_doi               10.1039/b920003g
_journal_volume                  12
_journal_year                    2010
_chemical_formula_sum            'C7 H14 N2 O4'
_chemical_formula_weight         190.20
_chemical_name_common            (1,2,3-triMeIM)(HCO3)H2O
_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                 95.011(5)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.479(2)
_cell_length_b                   13.289(4)
_cell_length_c                   9.636(3)
_cell_measurement_reflns_used    1200
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      25.12
_cell_measurement_theta_min      2.62
_cell_volume                     954.0(5)
_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 0.998
_diffrn_measured_fraction_theta_max 0.945
_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  0.0900
_diffrn_reflns_av_sigmaI/netI    0.1304
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            6463
_diffrn_reflns_theta_full        25.30
_diffrn_reflns_theta_max         28.23
_diffrn_reflns_theta_min         2.62
_exptl_absorpt_coefficient_mu    0.108
_exptl_absorpt_correction_T_max  0.9968
_exptl_absorpt_correction_T_min  0.9787
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 2002)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.324
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             408
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.03
_refine_diff_density_max         0.191
_refine_diff_density_min         -0.276
_refine_diff_density_rms         0.053
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.003
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     174
_refine_ls_number_reflns         2233
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.003
_refine_ls_R_factor_all          0.1822
_refine_ls_R_factor_gt           0.0719
_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^)+(0.0546P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1097
_refine_ls_wR_factor_ref         0.1407
_reflns_number_gt                1037
_reflns_number_total             2233
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b920003g.txt
_cod_data_source_block           '[1,2,3-triMeIM][HCO3]H2O'
_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 
;
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               7212126