Pressure-induced transformation of CH3NH3PbI3: the role of the noble-gas pressure transmitting media
Arakcheeva, Alla; Svitlyk, Volodymyr; Polini, Eleonora; Henry, Laura; Chernyshov, Dmitry; Sienkiewicz, Andrzej; Giriat, Gaétan; Glushkova, Anastasiia; Kollar, Marton; Náfrádi, Bálint; Forro, Laszlo; Horváth, Endre; Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials 75 (2019) 361–; doi:10.1107/S2052520619004554

data_2021859
_publ_section_title
;
 Pressure-induced transformation of CH3NH3PbI3: the role of the noble-gas
 pressure transmitting media
;
_journal_coeditor_code           DK5077SUP1
_journal_issue                   3
_journal_name_full
'Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials'
_journal_page_first              361
_journal_paper_doi               10.1107/S2052520619004554
_journal_volume                  75
_journal_year                    2019
_chemical_formula_analytical     'C1 H6 I3 N1 Ne2.5 Pb1'
_chemical_formula_sum            'I3 Ne2.5 Pb'
_chemical_formula_weight         638.4
_chemical_name_common            Ne-MAPbI3
_chemical_name_systematic        ' neon lead iodide'
_chemical_properties_physical    Pressure-sensitive
_space_group_IT_number           139
_space_group_name_Hall           '-I 4 2'
_space_group_name_H-M_alt        'I 4/m m m'
_symmetry_cell_setting           tetragonal
_symmetry_Int_Tables_number      139
_symmetry_space_group_name_Hall  '-I 4 2'
_symmetry_space_group_name_H-M   'I 4/m m m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   10.538(5)
_cell_length_b                   10.538(5)
_cell_length_c                   10.379(5)
_cell_measurement_pressure       20.27
_cell_measurement_reflns_used    380
_cell_measurement_temperature    293
_cell_measurement_theta_max      8.82
_cell_measurement_theta_min      2.88
_cell_volume                     1152.6(10)
_diffrn_ambient_temperature      293
_diffrn_detector                 'Mar165 CCD'
_diffrn_measured_fraction_theta_full 0.64
_diffrn_measured_fraction_theta_max 0.64
_diffrn_measurement_device_type  'abstract diffractometer'
_diffrn_radiation_probe          synchrotron
_diffrn_radiation_source         synchrotron
_diffrn_radiation_type           synchrotron
_diffrn_radiation_wavelength     0.3738
_diffrn_reflns_av_R_equivalents  0.0817
_diffrn_reflns_av_unetI/netI     0.0303
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       5
_diffrn_reflns_limit_l_min       -5
_diffrn_reflns_number            380
_diffrn_reflns_theta_full        8.82
_diffrn_reflns_theta_max         8.82
_diffrn_reflns_theta_min         2.88
_diffrn_source                   synchrotron
_exptl_absorpt_coefficient_mu    20.337
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details
;
CrysAlisPro, Agilent Technologies,
Version 1.171.37.35 (release 13-08-2014 CrysAlis171 .NET)
(compiled Aug 13 2014,18:06:01)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_density_diffrn    7.3572
_exptl_crystal_description       irregular
_exptl_crystal_F_000             2128
_exptl_crystal_recrystallization_method
'Reaction under pressure of 20.27 GPa between Ne-PTM and MAPbI3'
_refine_diff_density_max         0.81
_refine_diff_density_min         -1.35
_refine_ls_extinction_coef       2400(900)
_refine_ls_extinction_method
'B-C type 1 Gaussian isotropic (Becker & Coppens, 1974)'
_refine_ls_goodness_of_fit_gt    2.67
_refine_ls_goodness_of_fit_ref   1.52
_refine_ls_number_constraints    0
_refine_ls_number_parameters     19
_refine_ls_number_reflns         78
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.1264
_refine_ls_R_factor_gt           0.0432
_refine_ls_shift/su_max          0.0489
_refine_ls_shift/su_mean         0.0139
_refine_ls_structure_factor_coef F
_refine_ls_weighting_details     w=1/(\s^2^(F)+0.0001F^2^)
_refine_ls_weighting_scheme      sigma
_refine_ls_wR_factor_gt          0.0450
_refine_ls_wR_factor_ref         0.0579
_reflns_number_gt                32
_reflns_number_total             78
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            dk5077sup1.cif
_cod_data_source_block           VII
_cod_original_cell_volume        1152.6(12)
_cod_original_sg_symbol_Hall     '-I 4;-2'
_cod_original_formula_sum        'I3 Ne2.5 Pb1'
_cod_database_code               2021859
_diffrn_pressure                 20.27