Layered Hybrid Lead Perovskite Single Crystals: Phase Transformations and Tunable Optical Properties
Song, Jiewu; Dang, Yangyang; Liu, Xiaolong; Tao, Xutang; CrystEngComm  (2020) –; doi:10.1039/D0CE00753F

data_7241115
_publ_section_title
;
 Layered Hybrid Lead Perovskite Single Crystals: Phase Transformations and
 Tunable Optical Properties
;
_journal_name_full               CrystEngComm
_journal_paper_doi               10.1039/D0CE00753F
_journal_year                    2020
_chemical_formula_moiety         'I4 Pb, C16 N2'
_chemical_formula_sum            'C16 H24 I4 N2 Pb'
_chemical_formula_weight         959.16
_space_group_crystal_system      monoclinic
_space_group_IT_number           12
_space_group_name_Hall           '-C 2y'
_space_group_name_H-M_alt        'C 1 2/m 1'
_audit_creation_date             2018-01-08
_audit_creation_method
;
Olex2 1.2
(compiled 2016.02.19 svn.r3266 for OlexSys, GUI svn.r5155)
;
_audit_update_record
;
2018-01-10 deposited with the CCDC.	2020-08-20 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 93.205(2)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   32.824(6)
_cell_length_b                   6.1669(11)
_cell_length_c                   6.2114(11)
_cell_measurement_reflns_used    4187
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      27.55
_cell_measurement_theta_min      2.49
_cell_volume                     1255.4(4)
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.991
_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  0.0393
_diffrn_reflns_av_unetI/netI     0.0280
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.991
_diffrn_reflns_limit_h_max       42
_diffrn_reflns_limit_h_min       -42
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       7
_diffrn_reflns_limit_l_min       -7
_diffrn_reflns_number            7306
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.991
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.556
_diffrn_reflns_theta_min         1.243
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    11.639
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.4336
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2014/5 (Bruker,2014/5) was used for absorption correction.
wR2(int) was 0.1370 before and 0.0537 after correction.
The Ratio of minimum to maximum transmission is 0.5815.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            'clear orangish orange'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   orangish
_exptl_crystal_colour_primary    orange
_exptl_crystal_density_diffrn    2.537
_exptl_crystal_description       plate
_exptl_crystal_F_000             856
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.1
_refine_diff_density_max         2.020
_refine_diff_density_min         -1.174
_refine_diff_density_rms         0.431
_refine_ls_extinction_coef       0.0142(8)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2014/7 (Sheldrick 2014'
_refine_ls_goodness_of_fit_ref   1.204
_refine_ls_hydrogen_treatment    undef
_refine_ls_matrix_type           full
_refine_ls_number_parameters     95
_refine_ls_number_reflns         1565
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.204
_refine_ls_R_factor_all          0.0371
_refine_ls_R_factor_gt           0.0328
_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^)+(0.0641P)^2^+2.8952P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0899
_refine_ls_wR_factor_ref         0.1051
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1503
_reflns_number_total             1565
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d0ce00753f2.cif
_cod_data_source_block           x1
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_exptl_absorpt_correction_type' value 'Multi-scan' was
changed to 'multi-scan' in accordance with the
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 7556 2019-12-06 15:28:31Z antanas 
;
_cod_database_code               7241115
_shelx_estimated_absorpt_t_max   0.389
_shelx_estimated_absorpt_t_min   0.184
_olex2_refinement_description
;
1. Others
 Fixed Sof: I2(0.25) I3(0.25) C3(0.5) C4(0.5) C5(0.5) C6(0.5) C7(0.5) C8(0.5)
;
_shelx_res_checksum              43390
_shelx_shelxl_version_number     2014/7
_olex2_submission_special_instructions 'No special instructions were received'