Cation Engineering in Two-Dimensional Ruddlesden-Popper Lead Iodide Perovskites with Mixed Large A-Site Cations in the Cages.
Fu, Yongping; Jiang, Xinyi; Li, Xiaotong; Traore, Boubacar; Spanopoulos, Ioannis; Katan, Claudine; Even, Jacky; Kanatzidis, Mercouri G.; Harel, Elad; Journal of the American Chemical Society 142 (2020) 4008–4021; doi:10.1021/jacs.9b13587

data_4134200
_publ_section_title
;
 Cation Engineering in Two-Dimensional Ruddlesden-Popper Lead Iodide
 Perovskites with Mixed Large A-Site Cations in the Cages.
;
_journal_issue                   8
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              4008
_journal_page_last               4021
_journal_paper_doi               10.1021/jacs.9b13587
_journal_volume                  142
_journal_year                    2020
_chemical_absolute_configuration rm
_chemical_formula_moiety         'I10 Pb3, 2(C H6 N), 2(C4 H12 N)'
_chemical_formula_sum            'C10 H36 I10 N4 Pb3'
_chemical_formula_weight         2103.00
_space_group_crystal_system      monoclinic
_space_group_IT_number           9
_space_group_name_Hall           'C -2yc'
_space_group_name_H-M_alt        'C 1 c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_audit_creation_date             2019-10-31
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_cell_angle_alpha                90
_cell_angle_beta                 90.15(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   52.424(10)
_cell_length_b                   8.9841(18)
_cell_length_c                   8.9429(18)
_cell_measurement_reflns_used    10593
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      29.36
_cell_measurement_theta_min      2.21
_cell_volume                     4211.9(14)
_computing_cell_refinement       'STOE X-AREA'
_computing_data_collection       'STOE X-AREA'
_computing_data_reduction        'STOE X-RED'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_computing_structure_solution    'XS (Sheldrick, 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.986
_diffrn_measurement_device_type  'IPDS Stoe'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0609
_diffrn_reflns_av_unetI/netI     0.0693
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.986
_diffrn_reflns_limit_h_max       71
_diffrn_reflns_limit_h_min       -71
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            20223
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.982
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         29.215
_diffrn_reflns_theta_min         1.554
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    19.299
_exptl_absorpt_correction_T_max  0.5165
_exptl_absorpt_correction_T_min  0.0388
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'STOE X-AREA'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    3.316
_exptl_crystal_description       'square plate'
_exptl_crystal_F_000             3600
_exptl_crystal_size_max          0.1564
_exptl_crystal_size_mid          0.1068
_exptl_crystal_size_min          0.0161
_refine_diff_density_max         7.847
_refine_diff_density_min         -2.792
_refine_diff_density_rms         0.465
_refine_ls_abs_structure_details
;
 The structure can converge (shift<0.05)before adding hydrogens. However, it cannot converge after adding hydrogen. Since discussion of hydrogen bonding is not involved in this paper, the shift caused by the hydrogen will not influence the structure. Flack x determined using 1779 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.106(18)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.993
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     173
_refine_ls_number_reflns         10593
_refine_ls_number_restraints     22
_refine_ls_restrained_S_all      0.992
_refine_ls_R_factor_all          0.1587
_refine_ls_R_factor_gt           0.0862
_refine_ls_shift/su_max          2.062
_refine_ls_shift/su_mean         0.105
_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          0.2270
_refine_ls_wR_factor_ref         0.3164
_reflns_Friedel_coverage         0.991
_reflns_Friedel_fraction_full    0.999
_reflns_Friedel_fraction_max     0.978
_reflns_number_gt                5649
_reflns_number_total             10593
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja9b13587_si_003.cif
_cod_data_source_block           ea1ma1cc
_cod_depositor_comments
'Adding full bibliography for 4134198--4134201.cif.'
_cod_original_cell_volume        4211.9(15)
_cod_database_code               4134200
_shelx_shelxl_version_number     2014/7
_olex2_refinement_description
;
1. Twinned data refinement
 Scales: 0.502(8)
 0.498(8)
2. Fixed Uiso
 At 1.2 times of:
  All C(H,H) groups, All N(H,H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
3. Restrained distances
 C1-N1
 1.5 with sigma of 0.02
 C2-N2
 1.5 with sigma of 0.02
 N3-C3 = C3-C4
 1.5 with sigma of 0.02
 C3-C4 = C4-C5
 1.5 with sigma of 0.02
 C4-C5 = C5-C6
 1.5 with sigma of 0.02
 N4-C7 = C7-C8
 1.5 with sigma of 0.02
 C7-C8 = C8-C9
 1.5 with sigma of 0.02
 C8-C9 = C9-C10
 1.5 with sigma of 0.02
 N3-C4
 2.45 with sigma of 0.04
 C3-C5
 2.45 with sigma of 0.04
 C4-C6
 2.45 with sigma of 0.04
 N4-C8
 2.45 with sigma of 0.04
 C7-C9
 2.45 with sigma of 0.04
 C8-C10
 2.45 with sigma of 0.04
4. Uiso/Uaniso restraints and constraints
Uiso(C2) = Uiso(N2)
Uiso(N3) = Uiso(C3) = Uiso(C4) = Uiso(C5) = Uiso(C6)
Uiso(N4) = Uiso(C7) = Uiso(C8) = Uiso(C9)
Uiso(C7) = Uiso(C8) = Uiso(C9) = Uiso(C10)
Uiso(C1) = Uiso(N1)
5.a Secondary CH2 refined with riding coordinates:
 C3(H3D,H3E), C4(H4D,H4E), C9(H9A,H9B), C5(H5A,H5B), C8(H8A,H8B), C7(H7A,H7B)
5.b Idealised Me refined as rotating group:
 C1(H1A,H1B,H1C), N1(H1D,H1E,H1F), N2(H2A,H2B,H2C), C2(H2D,H2E,H2F), N4(H4A,
 H4B,H4C), N3(H3A,H3B,H3C), C10(H10A,H10B,H10C), C6(H6A,H6B,H6C)
;
_olex2_submission_special_instructions 'No special instructions were received'