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_7212127
_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 H15 N O3'
_chemical_formula_weight         161.20
_chemical_name_common            (N,N-diMePyr)(HCO3)
_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                 101.760(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   6.6199(6)
_cell_length_b                   13.9451(12)
_cell_length_c                   9.2587(8)
_cell_measurement_reflns_used    3123
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      28.18
_cell_measurement_theta_min      2.25
_cell_volume                     836.78(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 0.997
_diffrn_measured_fraction_theta_max 0.952
_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  0.0147
_diffrn_reflns_av_sigmaI/netI    0.0161
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            5760
_diffrn_reflns_theta_full        25.30
_diffrn_reflns_theta_max         28.20
_diffrn_reflns_theta_min         2.68
_exptl_absorpt_coefficient_mu    0.099
_exptl_absorpt_correction_T_max  0.9902
_exptl_absorpt_correction_T_min  0.9709
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Shieldrick, 2002)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.280
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             352
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.157
_refine_diff_density_min         -0.216
_refine_diff_density_rms         0.045
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.029
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     160
_refine_ls_number_reflns         1967
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.029
_refine_ls_R_factor_all          0.0445
_refine_ls_R_factor_gt           0.0356
_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^)+(0.0550P)^2^+0.1149P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0890
_refine_ls_wR_factor_ref         0.0937
_reflns_number_gt                1648
_reflns_number_total             1967
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b920003g.txt
_cod_data_source_block           '[N,N-diMePyr][HCO3]'
_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               7212127