Chemical Approaches to Addressing the Instability and Toxicity of Lead-Halide Perovskite Absorbers.
Slavney, Adam H.; Smaha, Rebecca W.; Smith, Ian C.; Jaffe, Adam; Umeyama, Daiki; Karunadasa, Hemamala I.; Inorganic chemistry 56 (2017) 46–55; doi:10.1021/acs.inorgchem.6b01336

data_4344933
_publ_section_title
;
 Chemical Approaches to Addressing the Instability and Toxicity of
 Lead-Halide Perovskite Absorbers.
;
_journal_issue                   1
_journal_name_full               'Inorganic chemistry'
_journal_page_first              46
_journal_page_last               55
_journal_paper_doi               10.1021/acs.inorgchem.6b01336
_journal_volume                  56
_journal_year                    2017
_chemical_formula_moiety         'I7 Pb2, C N H6, 2(C8 H11 F N) '
_chemical_formula_sum            'C17 H28 F2 I7 N3 Pb2'
_chemical_formula_weight         1615.15
_chemical_name_systematic
'bis(4-fluorophenethylammonium) (methylammonium) heptaiodo diplumbate'
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_date             2016-06-01
_audit_creation_method
;
Olex2 1.2
(compiled 2016.02.19 svn.r3266 for OlexSys, GUI svn.r5155)
;
_cell_angle_alpha                90
_cell_angle_beta                 94.387(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   45.079(2)
_cell_length_b                   8.6229(4)
_cell_length_c                   8.7440(4)
_cell_measurement_reflns_used    9891
_cell_measurement_temperature    100
_cell_measurement_theta_max      25.503
_cell_measurement_theta_min      2.331
_cell_volume                     3388.9(3)
_computing_cell_refinement       'SAINT v8.34A (Bruker, 2013)'
_computing_data_reduction        'SAINT v8.34A (Bruker, 2013)'
_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      100
_diffrn_detector_area_resol_mean 10.42
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  'Bruker D8 with PHOTON 100 detector'
_diffrn_measurement_method       '\f and \w shutterless scans'
_diffrn_radiation_monochromator  'silicon 111'
_diffrn_radiation_type           synchrotron
_diffrn_radiation_wavelength     0.6888
_diffrn_reflns_av_unetI/netI     0.0337
_diffrn_reflns_Laue_measured_fraction_full 0.993
_diffrn_reflns_Laue_measured_fraction_max 0.990
_diffrn_reflns_limit_h_max       56
_diffrn_reflns_limit_h_min       -56
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            3524
_diffrn_reflns_point_group_measured_fraction_full 0.993
_diffrn_reflns_point_group_measured_fraction_max 0.990
_diffrn_reflns_theta_full        24.411
_diffrn_reflns_theta_max         25.511
_diffrn_reflns_theta_min         2.331
_diffrn_source
;
Advanced Light Source, station 11.3.1
;
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    14.908
_exptl_absorpt_correction_T_max  0.428914
_exptl_absorpt_correction_T_min  0.221386
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
 TWINABS-2012/1 (Bruker,2012) was used for absorption correction.
 
For component 1:
 wR2(int) was 0.1421 before and 0.1177 after correction.
 The Ratio of minimum to maximum transmission is 0.53.
 The \l/2 correction factor is Not present

Final HKLF 4 output contains 35414 reflections, Rint = 0.0609
 (20104 with I > 3sig(I), Rint = 0.0577)
;
_exptl_crystal_colour            'clear light red'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   light
_exptl_crystal_colour_primary    red
_exptl_crystal_density_diffrn    3.154
_exptl_crystal_description       plate
_exptl_crystal_F_000             2792
_exptl_crystal_preparation       'Slow evaporation from acetone/nitromethane'
_exptl_crystal_size_max          0.27
_exptl_crystal_size_mid          0.07
_exptl_crystal_size_min          0.01
_refine_diff_density_max         1.745
_refine_diff_density_min         -1.892
_refine_diff_density_rms         0.284
_refine_ls_extinction_coef       0.00041(3)
_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   1.158
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     148
_refine_ls_number_reflns         3524
_refine_ls_number_restraints     74
_refine_ls_restrained_S_all      1.146
_refine_ls_R_factor_all          0.0394
_refine_ls_R_factor_gt           0.0382
_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^)+(0.0418P)^2^+135.6815P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1022
_refine_ls_wR_factor_ref         0.1030
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3442
_reflns_number_total             3524
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ic6b01336_si_003.cif
_cod_data_source_block           g1
_cod_depositor_comments          'Adding full bibliography for 4344933.cif.'
_cod_database_code               4344933
_olex2_refinement_description
;
1. Twinned data refinement
 Scales: 0.8576(15) 0.1424(15)
2. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All N(H,H,H) groups
3. Shared sites
{C1, N1A}
{N1, C1A}
{C1B, N1BA}
{N1B, C1BA}
4. Restrained distances
 C1-N1
 1.45 with sigma of 0.02
 C1B-N1B
 1.45 with sigma of 0.02
5. Rigid bond restraints
 C9, C8, C7, C6, C5, C10
 with sigma for 1-2 distances of 0.01 and sigma for 1-3 distances of 0.01
6. Uiso/Uaniso restraints and constraints
C9 \\sim C10 \\sim C8 \\sim C7 \\sim C6 \\sim C5: within 2A with sigma of 0.04
and sigma for terminal atoms of 0.08
F1 \\sim N3 \\sim C6 \\sim C10 \\sim C8 \\sim C5 \\sim C3 \\sim C7 \\sim C9
\\sim C4: within 2A with sigma of 0.04 and sigma for terminal atoms of 0.08
Uiso(N1) = Uiso(C1A) = Uiso(N1A) = Uiso(C1) = Uiso(N1B) = Uiso(C1BA) =
Uiso(N1BA) = Uiso(C1B)
7. Others
 Fixed Sof: C1(0.125) N1(0.125) C1A(0.125) N1A(0.125) C1B(0.125) N1B(0.125)
 C1BA(0.125) N1BA(0.125)
8.a Secondary CH2 refined with riding coordinates:
 C3(H3D,H3E), C4(H4A,H4B)
8.b Aromatic/amide H refined with riding coordinates:
 C6(H6), C10(H10), C7(H7), C9(H9)
8.c Idealised Me refined as rotating group:
 N3(H3A,H3B,H3C)
;
_shelx_res_checksum              15943
_shelx_hkl_checksum              53674
_shelx_shelxl_version_number     2014/7
_olex2_exptl_crystal_mounting_method
'Mitegen loop with a trace of mineral oil'
_olex2_submission_special_instructions 'No special instructions were received'