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_7208149
_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            'C10 H11 Cl N2 O'
_chemical_formula_weight         210.66
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   11.9981(19)
_cell_length_b                   7.3161(12)
_cell_length_c                   23.079(3)
_cell_measurement_reflns_used    1087
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      20.87
_cell_measurement_theta_min      2.45
_cell_volume                     2025.9(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      293(2)
_diffrn_measured_fraction_theta_full 0.966
_diffrn_measured_fraction_theta_max 0.966
_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  0.0912
_diffrn_reflns_av_sigmaI/netI    0.1026
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            11540
_diffrn_reflns_theta_full        27.00
_diffrn_reflns_theta_max         27.00
_diffrn_reflns_theta_min         1.76
_exptl_absorpt_coefficient_mu    0.344
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.381
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             880
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.07
_refine_diff_density_max         0.226
_refine_diff_density_min         -0.232
_refine_diff_density_rms         0.053
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.971
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     127
_refine_ls_number_reflns         2138
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.971
_refine_ls_R_factor_all          0.1350
_refine_ls_R_factor_gt           0.0428
_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^)+(0.0300P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0823
_refine_ls_wR_factor_ref         0.1024
_reflns_number_gt                943
_reflns_number_total             2138
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2jm31939j.txt
_cod_data_source_block           C10H11ClN2O
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' 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      Pbca
_cod_database_code               7208149