High-Temperature and Pressure-Induced Ferroelectricity in Hydrogen-Bonded Supramolecular Crystals of Anilic Acids and 2,3-Di(2-pyridinyl)pyrazine
Sachio Horiuchi; Reiji Kumai; Yoshinori Tokura; Journal of the American Chemical Society 135 (2013) 4492–4500; doi:10.1021/ja400318v

data_4119482
_publ_contact_author_email       s-horiuchi@aist.go.jp
_publ_contact_author_fax         +81-29-861-2586
_publ_contact_author_name        'Dr. Sachio HORIUCHI'
_publ_contact_author_phone       +81-29-861-2945
_publ_section_title
;
 High-Temperature and Pressure-Induced Ferroelectricity in Hydrogen-Bonded
 Supramolecular Crystals of Anilic Acids and 2,3-Di(2-pyridinyl)pyrazine
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              4492
_journal_page_last               4500
_journal_paper_doi               10.1021/ja400318v
_journal_volume                  135
_journal_year                    2013
_chemical_absolute_configuration 'CHOOSE rm ad rmad syn or unk'
_chemical_formula_moiety         'C20 H12 Cl2 N4 O4'
_chemical_formula_sum            'C20 H12 Cl2 N4 O4'
_chemical_formula_weight         443.25
_space_group_IT_number           9
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      9
_symmetry_space_group_name_Hall  'C -2yc'
_symmetry_space_group_name_H-M   'C 1 c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             2012-12-28
_audit_creation_method           'by CrystalStructure 4.0'
_cell_angle_alpha                90.0000
_cell_angle_beta                 101.1931(11)
_cell_angle_gamma                90.0000
_cell_formula_units_Z            4
_cell_length_a                   11.2602(16)
_cell_length_b                   9.2611(11)
_cell_length_c                   18.389(3)
_cell_measurement_reflns_used    4406
_cell_measurement_temperature    293
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      3.21
_cell_volume                     1881.2(5)
_computing_cell_refinement       CrystalClear
_computing_data_collection       'CrystalClear (Rigaku Corp., 2000)'
_computing_data_reduction        CrystalClear
_computing_molecular_graphics    'CrystalStructure 4.0'
_computing_publication_material  'CrystalStructure 4.0 (Rigaku, 2010)'
_computing_structure_refinement  'CRYSTALS (Carruthers, et al., 1999)'
_computing_structure_solution    'SIR92 (Altomare, et al., 1994)'
_diffrn_ambient_temperature      293
_diffrn_detector_area_resol_mean 7.314
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Rigaku Mercury70'
_diffrn_measurement_method       \w
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71070
_diffrn_reflns_av_R_equivalents  0.0207
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            9358
_diffrn_reflns_theta_full        27.47
_diffrn_reflns_theta_max         27.47
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.383
_exptl_absorpt_correction_T_max  0.955
_exptl_absorpt_correction_T_min  0.884
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'NUMABS (Rigaku, 1999)'
_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    1.565
_exptl_crystal_description       rod
_exptl_crystal_F_000             904.00
_exptl_crystal_size_max          0.320
_exptl_crystal_size_mid          0.240
_exptl_crystal_size_min          0.120
_refine_diff_density_max         0.206
_refine_diff_density_min         -0.306
_refine_ls_abs_structure_details
'Flack, H. D. (1983), Acta Cryst. A39, 876-881.  1384 Friedel Pairs'
_refine_ls_abs_structure_Flack   0.3(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.872
_refine_ls_hydrogen_treatment    mixed
_refine_ls_number_parameters     290
_refine_ls_number_reflns         1941
_refine_ls_R_factor_gt           0.0359
_refine_ls_shift/su_max          0.059
_refine_ls_structure_factor_coef F
_refine_ls_weighting_details     'w = 1/\s^2^(Fo)'
_refine_ls_weighting_scheme      sigma
_refine_ls_wR_factor_ref         0.0395
_reflns_number_gt                1941
_reflns_number_total             3529
_reflns_threshold_expression     F>2.0\s(F)
_cod_data_source_file            ja400318v_si_002.cif
_cod_data_source_block           '__Hdppz_Hca'
_cod_database_code               4119482