Ferroelectricity and Piezoelectricity in Free-Standing Polycrystalline Films of Plastic Crystals.
Harada, Jun; Yoneyama, Naho; Yokokura, Seiya; Takahashi, Yukihiro; Miura, Atsushi; Kitamura, Noboru; Inabe, Tamotsu; Journal of the American Chemical Society  (2017) –; doi:10.1021/jacs.7b10539

data_4126954
_publ_section_title
;
 Ferroelectricity and Piezoelectricity in Free-Standing Polycrystalline
 Films of Plastic Crystals.
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_paper_doi               10.1021/jacs.7b10539
_journal_year                    2017
_chemical_formula_moiety         '2(Cl2 Fe0.5), 0.25(C12 H36 N4), C'
_chemical_formula_sum            'C4 H12 Cl4 Fe N'
_chemical_formula_weight         271.80
_space_group_crystal_system      orthorhombic
_space_group_IT_number           63
_space_group_name_Hall           '-C 2c 2'
_space_group_name_H-M_alt        'C m c m'
_symmetry_space_group_name_Hall  '-C 2c 2'
_symmetry_space_group_name_H-M   'C m c m'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2017-08-22
_audit_creation_method
;
Olex2 1.2
(compiled 2017.08.10 svn.r3458 for OlexSys, GUI svn.r5381)
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.964(9)
_cell_length_b                   9.618(9)
_cell_length_c                   14.158(13)
_cell_measurement_reflns_used    3586
_cell_measurement_temperature    360
_cell_measurement_theta_max      24.581
_cell_measurement_theta_min      2.877
_cell_volume                     1221(2)
_computing_cell_refinement       'SAINT v8.34A (Bruker, 2013)'
_computing_data_collection       'Bruker APEX2 2014.1-1 (Bruker, 2014)'
_computing_data_reduction        'SAINT v8.34A (Bruker, 2013)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      360
_diffrn_detector_area_resol_mean 8.3333
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0350
_diffrn_reflns_av_unetI/netI     0.0146
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.996
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            9245
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.996
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.532
_diffrn_reflns_theta_min         2.877
_diffrn_source                   'rotating-anode X-ray tube'
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.056
_exptl_absorpt_correction_T_max  0.704093
_exptl_absorpt_correction_T_min  0.549358
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
 TWINABS-2012/1 (Bruker,2012) was used for absorption correction.
 
For component 1:
 wR2(int) was 0.1013 before and 0.0450 after correction.
 The Ratio of minimum to maximum transmission is 0.78.
 The \l/2 correction factor is Not present
 
For component 2:
 wR2(int) was 0.1076 before and 0.0449 after correction.
 The Ratio of minimum to maximum transmission is 0.78.
 The \l/2 correction factor is Not present

Final HKLF 4 output contains 9245 reflections, Rint = 0.0350
 (5220 with I > 3sig(I), Rint = 0.0318)
;
_exptl_crystal_colour            yellow
_exptl_crystal_colour_primary    yellow
_exptl_crystal_density_diffrn    1.479
_exptl_crystal_description       block
_exptl_crystal_F_000             548
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.188
_exptl_crystal_size_min          0.125
_refine_diff_density_max         0.483
_refine_diff_density_min         -0.224
_refine_diff_density_rms         0.085
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.114
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     57
_refine_ls_number_reflns         785
_refine_ls_number_restraints     45
_refine_ls_restrained_S_all      1.148
_refine_ls_R_factor_all          0.0795
_refine_ls_R_factor_gt           0.0636
_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^)+(0.1031P)^2^+1.4299P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1943
_refine_ls_wR_factor_ref         0.2068
_reflns_Friedel_coverage         0.000
_reflns_number_gt                577
_reflns_number_total             785
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja7b10539_si_005.cif
_cod_data_source_block           TMA_FeCl4_360K
_cod_database_code               4126954
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_max   0.783
_shelx_estimated_absorpt_t_min   0.627
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.5 times of:
  All C(H,H,H) groups
2. Restrained distances
 N1-C1 \\sim N1-C2 \\sim N1-C3 \\sim N1-C4
 with sigma of 0.02
3. Rigid body (RIGU) restrains
 All non-hydrogen atoms
 with sigma for 1-2 distances of 0.004 and sigma for 1-3 distances of 0.004
4. Others
 Fixed Sof: C1(0.25) H1A(0.25) H1B(0.25) H1C(0.25) C2(0.25) H2A(0.25)
 H2B(0.25) H2C(0.25) C3(0.25) H3A(0.25) H3B(0.25) H3C(0.25) C4(0.25) H4A(0.25)
 H4B(0.25) H4C(0.25)
5.a Me refined with riding coordinates:
 C1(H1A,H1B,H1C), C2(H2A,H2B,H2C), C3(H3A,H3B,H3C)
;
_olex2_submission_special_instructions 'No special instructions were received'