Dibenzylammonium trichloroacetate: an above-room-temperature order‒disorder switchable dielectric material
Zeng, Siyuan; Sun, Zhihua; Ji, Chengmin; Zhang, Shuquan; Song, Cheng; Luo, Junhua; CrystEngComm 18 (2016) 3606–; doi:10.1039/C6CE00194G

data_7224664
_publ_section_title
;
 Dibenzylammonium trichloroacetate: an above-room-temperature
 order--disorder switchable dielectric material
;
_journal_issue                   20
_journal_name_full               CrystEngComm
_journal_page_first              3606
_journal_paper_doi               10.1039/C6CE00194G
_journal_volume                  18
_journal_year                    2016
_chemical_formula_moiety         'C14 H16 N, C2 Cl3 O2'
_chemical_formula_sum            'C24 H24 Cl4.5 N1.5 O3'
_chemical_formula_weight         540.97
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           62
_space_group_name_Hall           '-P 2ac 2n'
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2n'
_symmetry_space_group_name_H-M   'P n m a'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2015-05-14 deposited with the CCDC.
2016-03-21 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   28.2869(4)
_cell_length_b                   17.9428(3)
_cell_length_c                   10.25130(10)
_cell_measurement_temperature    320(2)
_cell_volume                     5203.01(12)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      320(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0238
_diffrn_reflns_av_sigmaI/netI    0.0241
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -33
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            12575
_diffrn_reflns_theta_full        66.58
_diffrn_reflns_theta_max         66.58
_diffrn_reflns_theta_min         3.12
_exptl_absorpt_coefficient_mu    4.832
_exptl_absorpt_correction_T_max  0.299
_exptl_absorpt_correction_T_min  0.164
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
_exptl_special_details 
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.381
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             2232
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.35
_exptl_crystal_size_min          0.25
_refine_diff_density_max         1.191
_refine_diff_density_min         -0.496
_refine_diff_density_rms         0.071
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.077
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     344
_refine_ls_number_reflns         4755
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.077
_refine_ls_R_factor_all          0.1013
_refine_ls_R_factor_gt           0.0850
_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^)+(0.1284P)^2^+4.7600P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2402
_refine_ls_wR_factor_ref         0.2619
_reflns_number_gt                3706
_reflns_number_total             4755
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c6ce00194g2.cif
_cod_data_source_block           f:\zsy\done\olex2_~2\320k
_cod_depositor_comments
'Adding full bibliography for 7224662--7224665.cif.'
_cod_original_formula_sum        'C24 H24 Cl4.50 N1.50 O3'
_cod_database_code               7224664