A ferroelectric proton conductor with colossal polarization induced by in-plane symmetry breaking in a two-dimensional coordination polymer.
Song, Yanqing; Tsuji, Yuta; Sugimoto, Kunihisa; Kikuchi, Takashi; Shi, Yuxin; Murakami, Yusuke; Hiramatsu, Kotaro; Le Ouay, Benjamin; Ohba, Masaaki; Ohtani, Ryo; Chemical science 16 (2025) 13413–13421; doi:10.1039/d4sc08700c

data_1574937
_publ_section_title
;
 A ferroelectric proton conductor with colossal polarization induced by
 in-plane symmetry breaking in a two-dimensional coordination polymer.
;
_journal_issue                   29
_journal_name_full               'Chemical science'
_journal_page_first              13413
_journal_page_last               13421
_journal_paper_doi               10.1039/d4sc08700c
_journal_volume                  16
_journal_year                    2025
_chemical_formula_moiety         'C38 H31 Mn2 N10 O4 Re, H2 O'
_chemical_formula_sum            'C38 H33 Mn2 N10 O5 Re'
_chemical_formula_weight         1005.82
_space_group_crystal_system      orthorhombic
_space_group_IT_number           33
_space_group_name_Hall           'P 2c -2n'
_space_group_name_H-M_alt        'P n a 21'
_atom_sites_solution_hydrogens   mixed
_audit_creation_date             2024-11-28
_audit_creation_method
;
Olex2 1.5
(compiled 2024.02.16 svn.r378c4104 for OlexSys, GUI svn.r6928)
;
_audit_update_record
;
2024-12-16 deposited with the CCDC.	2025-06-02 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   17.9573(3)
_cell_length_b                   14.2990(2)
_cell_length_c                   14.6854(2)
_cell_measurement_reflns_used    98517
_cell_measurement_temperature    100
_cell_measurement_theta_max      21.6570
_cell_measurement_theta_min      1.5550
_cell_volume                     3770.79(10)
_computing_cell_refinement       'CrysAlisPro 1.171.42.49 (Rigaku OD, 2022)'
_computing_data_collection       'CrysAlisPro 1.171.42.49 (Rigaku OD, 2022)'
_computing_data_reduction        'CrysAlisPro 1.171.42.49 (Rigaku OD, 2022)'
_computing_molecular_graphics    'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2018/3 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      100.00
_diffrn_detector_area_resol_mean 5.8140
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.913
_diffrn_measurement_details
;
List of Runs (angles in degrees, time in seconds):

  # Type    Start    End  Width  t~exp~   \w     \q     \k     \f   Frames
  1  \w      0.00 180.00   0.50    0.50    --    0.00  45.00   0.00  360
  2  \w      0.00 180.00   0.50    0.50    --    0.00  45.00 -90.00  360
  3  \w      0.00 180.00   0.50    0.50    --    0.00  45.00-180.00  360
  4  \w      0.00 180.00   0.50    0.50    --    0.00  45.00-270.00  360
;
_diffrn_measurement_device       'abstract diffractometer'
_diffrn_measurement_device_type
'esperanto-CrysAlisPro-abstract goniometer imported esperanto images'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_type           synchrotron
_diffrn_radiation_wavelength     0.4139
_diffrn_reflns_av_R_equivalents  0.0876
_diffrn_reflns_av_unetI/netI     0.0382
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.913
_diffrn_reflns_limit_h_max       32
_diffrn_reflns_limit_h_min       -31
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            194458
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.886
_diffrn_reflns_theta_full        14.379
_diffrn_reflns_theta_max         21.790
_diffrn_reflns_theta_min         1.548
_exptl_absorpt_coefficient_mu    0.953
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.59443
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.42.49 (Rigaku Oxford Diffraction, 2022)
Empirical absorption correction using spherical harmonics,
implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    1.772
_exptl_crystal_description       block
_exptl_crystal_F_000             1984
_exptl_crystal_size_max          0.4
_exptl_crystal_size_mid          0.3
_exptl_crystal_size_min          0.2
_refine_diff_density_max         3.881
_refine_diff_density_min         -4.070
_refine_diff_density_rms         0.209
_refine_ls_abs_structure_details
;
 Flack x determined using 7913 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.394(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.083
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     509
_refine_ls_number_reflns         20201
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.083
_refine_ls_R_factor_all          0.0457
_refine_ls_R_factor_gt           0.0413
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0850P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1174
_refine_ls_wR_factor_ref         0.1216
_reflns_Friedel_coverage         0.887
_reflns_Friedel_fraction_full    0.999
_reflns_Friedel_fraction_max     0.858
_reflns_number_gt                18096
_reflns_number_total             20201
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d4sc08700c2.cif
_cod_data_source_block           230513_03_mnre_100k-1__autored
_cod_depositor_comments
'Adding full bibliography for 1574937--1574947.cif.'
_cod_database_code               1574937
_shelx_shelxl_version_number     2018/3
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups, All O(H,H) groups
2.a Free rotating group:
 O5(H5A,H5B)
2.b Secondary CH2 refined with riding coordinates:
 C8(H8A,H8B), C24(H24A,H24B), C9(H9A,H9B), C25(H25A,H25B)
2.c Aromatic/amide H refined with riding coordinates:
 C3(H3), C10(H10), C15(H15), C7(H7), C2(H2), C18(H18), C29(H29), C4(H4),
 C14(H14), C20(H20), C31(H31), C26(H26), C5(H5), C23(H23), C13(H13), C28(H28),
 C21(H21), C30(H30), C12(H12), C19(H19)
2.d Idealised Me refined as rotating group:
 C38(H38A,H38B,H38C)
;
_shelx_res_checksum              96076
_olex2_submission_special_instructions 'No special instructions were received'
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
- Detector area scaling
;