N-Isopropylbenzylammonium tetrafluoroborate: an organic dielectric relaxor with a tunable transition between high and low dielectric states
Chengmin Ji; Zhihua Sun; Shu-Quan Zhang; Tianliang Chen; Pan Zhou; Junhua Luo; Journal of Materials Chemistry C 2 (2014) 567–572; doi:10.1039/C3TC31378F

data_7233599
_publ_section_title
;
 N-Isopropylbenzylammonium tetrafluoroborate: an organic dielectric
 relaxor with a tunable transition between high and low dielectric states
;
_journal_name_full               'Journal of Materials Chemistry C'
_journal_page_first              567
_journal_page_last               572
_journal_paper_doi               10.1039/C3TC31378F
_journal_volume                  2
_journal_year                    2014
_chemical_formula_moiety         'C10 H18 N, B F4'
_chemical_formula_sum            'C10 H18 B F4 N'
_chemical_formula_weight         239.06
_chemical_name_common            'N-Isopropylbenzylammonium Tetrafluoroborate'
_space_group_IT_number           12
_space_group_name_Hall           '-C 2y'
_space_group_name_H-M_alt        'C 1 2/m 1'
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_H-M   'C 1 2/m 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 119.35(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   18.493(4)
_cell_length_b                   7.7954(16)
_cell_length_c                   10.016(2)
_cell_measurement_temperature    293(2)
_cell_volume                     1258.6(6)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.967
_diffrn_measured_fraction_theta_max 0.967
_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  0.0227
_diffrn_reflns_av_sigmaI/netI    0.0292
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            3693
_diffrn_reflns_theta_full        27.74
_diffrn_reflns_theta_max         27.74
_diffrn_reflns_theta_min         2.33
_exptl_absorpt_coefficient_mu    0.114
_exptl_absorpt_correction_type   none
_exptl_crystal_density_diffrn    1.251
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             504
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.364
_refine_diff_density_min         -0.229
_refine_diff_density_rms         0.060
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.064
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     92
_refine_ls_number_reflns         1598
_refine_ls_number_restraints     9
_refine_ls_restrained_S_all      1.063
_refine_ls_R_factor_all          0.1423
_refine_ls_R_factor_gt           0.0939
_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^)+(0.1823P)^2^+1.3801P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.3018
_refine_ls_wR_factor_ref         0.3572
_reflns_number_gt                819
_reflns_number_total             1547
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            J-Mater-Chem-C-2014-2-567-2.cif
_cod_data_source_block           N-IPBAT-293K
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_symmetry_cell_setting' value 'Monoclinic' was changed to
'monoclinic' in accordance with the built-in table derived from the
CIF Core dictionary named 'cif_core.dic' version 2.4.5 last updated
on 2014-11-21.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_original_cell_volume        1258.6(4)
_cod_original_sg_symbol_H-M      'C 2/m'
_cod_database_code               7233599