Pyrazolium salts as a new class of ionic liquid crystals
Sánchez, Ignacio; Campo, José Antonio; Heras, José Vicente; Rosario Torres, M.; Cano, Mercedes; Journal of Materials Chemistry 22 (2012) 13239–; doi:10.1039/c2jm31939j

data_7208150
_publ_section_title
;
 Pyrazolium salts as a new class of ionic liquid crystals
;
_journal_issue                   26
_journal_name_full               'Journal of Materials Chemistry'
_journal_page_first              13239
_journal_paper_doi               10.1039/c2jm31939j
_journal_volume                  22
_journal_year                    2012
_chemical_formula_sum            'C19 H29 B F4 N2 O'
_chemical_formula_weight         388.25
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                93.895(2)
_cell_angle_beta                 94.406(2)
_cell_angle_gamma                104.332(2)
_cell_formula_units_Z            2
_cell_length_a                   6.1620(6)
_cell_length_b                   9.2230(9)
_cell_length_c                   19.0670(19)
_cell_measurement_reflns_used    1700
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      22.62
_cell_measurement_theta_min      2.29
_cell_volume                     1042.54(18)
_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      296(2)
_diffrn_measured_fraction_theta_full 0.970
_diffrn_measured_fraction_theta_max 0.970
_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  0.0391
_diffrn_reflns_av_sigmaI/netI    0.0534
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            7996
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.08
_exptl_absorpt_coefficient_mu    0.100
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.237
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             412
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.376
_refine_diff_density_min         -0.291
_refine_diff_density_rms         0.040
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.994
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     246
_refine_ls_number_reflns         3571
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.994
_refine_ls_R_factor_all          0.1172
_refine_ls_R_factor_gt           0.0619
_refine_ls_shift/su_max          0.006
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1200P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1841
_refine_ls_wR_factor_ref         0.2181
_reflns_number_gt                1749
_reflns_number_total             3571
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2jm31939j.txt
_cod_data_source_block           C19H29BF4N2O
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7208150