[C7H14NO][ClO4]: order‒disorder structural change induced sudden switchable dielectric behaviour at room temperature
Fan, Guang-Meng; Gao, Ji-Xing; Shi, Chao; Yu, Hui; Ye, Le; Jiang, Jia-Ying; Shuai, Cijun; Zhang, Yi; Ye, Heng-Yun; CrystEngComm 20 (2018) 7058–; doi:10.1039/C8CE01461B

data_7231663
_publ_section_title
;
 [C7H14NO][ClO4]: order--disorder structural change induced sudden
 switchable dielectric behaviour at room temperature
;
_journal_issue                   44
_journal_name_full               CrystEngComm
_journal_page_first              7058
_journal_paper_doi               10.1039/C8CE01461B
_journal_volume                  20
_journal_year                    2018
_chemical_formula_moiety         'C7 H14 N O, Cl O4'
_chemical_formula_sum            'C7 H14 Cl N O5'
_chemical_formula_weight         227.64
_space_group_crystal_system      cubic
_space_group_IT_number           221
_space_group_name_Hall           '-P 4 2 3'
_space_group_name_H-M_alt        'P m -3 m'
_symmetry_space_group_name_Hall  '-P 4 2 3'
_symmetry_space_group_name_H-M   'P m -3 m'
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2018-09-12 deposited with the CCDC.
2018-10-12 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            1
_cell_length_a                   6.4782(8)
_cell_length_b                   6.4782(8)
_cell_length_c                   6.4782(8)
_cell_measurement_reflns_used    277
_cell_measurement_temperature    353(2)
_cell_measurement_theta_max      24.920
_cell_measurement_theta_min      3.145
_cell_volume                     271.87(6)
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_diffrn_ambient_temperature      353(2)
_diffrn_measured_fraction_theta_full 0.944
_diffrn_measured_fraction_theta_max 0.946
_diffrn_measurement_device_type  'Rigaku, SCXmini'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1755
_diffrn_reflns_av_unetI/netI     0.1125
_diffrn_reflns_Laue_measured_fraction_full 0.944
_diffrn_reflns_Laue_measured_fraction_max 0.946
_diffrn_reflns_limit_h_max       3
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       4
_diffrn_reflns_limit_l_min       -7
_diffrn_reflns_number            277
_diffrn_reflns_point_group_measured_fraction_full 0.944
_diffrn_reflns_point_group_measured_fraction_max 0.946
_diffrn_reflns_theta_full        24.920
_diffrn_reflns_theta_max         24.920
_diffrn_reflns_theta_min         3.145
_exptl_absorpt_coefficient_mu    0.338
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.312
_exptl_crystal_description       block
_exptl_crystal_F_000             106.6
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.28
_refine_diff_density_max         0.472
_refine_diff_density_min         -0.246
_refine_diff_density_rms         0.121
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.258
_refine_ls_hydrogen_treatment    undef
_refine_ls_matrix_type           full
_refine_ls_number_parameters     10
_refine_ls_number_reflns         70
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.258
_refine_ls_R_factor_all          0.1864
_refine_ls_R_factor_gt           0.1552
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.2000P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.3544
_refine_ls_wR_factor_ref         0.3987
_reflns_Friedel_coverage         0.000
_reflns_number_gt                37
_reflns_number_total             72
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8ce01461b2.cif
_cod_data_source_block           HT
_cod_depositor_comments
'Adding full bibliography for 7231662--7231663.cif.'
_cod_original_cell_volume        271.87(10)
_cod_database_code               7231663
_shelx_shelxl_version_number     2014/7
_ht_res_file
;

    HT.res created by SHELXL-2014/7

TITL 1 in Pm-3m
CELL 0.71073   6.4782   6.4782   6.4782  90.000  90.000  90.000
ZERR   1  0.0008   0.0008   0.0008   0.000   0.000   0.000
LATT 1
SYMM -X, -Y, Z
SYMM -X, Y, -Z
SYMM X, -Y, -Z
SYMM Z, X, Y
SYMM Z, -X, -Y
SYMM -Z, -X, Y
SYMM -Z, X, -Y
SYMM Y, Z, X
SYMM -Y, Z, -X
SYMM Y, -Z, -X
SYMM -Y, -Z, X
SYMM Y, X, -Z
SYMM -Y, -X, -Z
SYMM Y, -X, Z
SYMM -Y, X, Z
SYMM X, Z, -Y
SYMM -X, Z, Y
SYMM -X, -Z, -Y
SYMM X, -Z, Y
SYMM Z, Y, -X
SYMM Z, -Y, X
SYMM -Z, Y, X
SYMM -Z, -Y, -X
SFAC C  H  N  O  Cl
UNIT 7 14 1 5 1
OMIT 1 1 1
OMIT 1 2 3
OMIT  -3.00  50.00
L.S. 40
ACTA
BOND
FMAP 2
PLAN 1
TEMP 73
WGHT    0.200000
FVAR       1.68553   0.66667
CL1   5    0.000000    0.000000    0.000000    10.02083    0.13929    0.13929 =
         0.13929    0.00000    0.00000    0.00000
C1    1    0.337665    0.337665    0.500000    10.20000    0.24009    0.24009 =
         0.26612    0.00000    0.00000   -0.05435
O1    4    0.000000    0.208764    0.000000    10.08333    0.29754    0.29403 =
         0.29754    0.00000    0.00000    0.00000
HKLF 4

REM  HT in Pm-3m
REM R1 =  0.1552 for      37 Fo > 4sig(Fo)  and  0.1864 for all      70 data
REM     10 parameters refined using      0 restraints

END

WGHT      0.2000      0.0000

REM Highest difference peak  0.472,  deepest hole -0.246,  1-sigma level  0.121
Q1    1   0.5000  0.5000  0.5000  10.02083  0.05    0.26
;
_shelx_res_checksum              69268