See all entries for this property (27 total)
Crystal system: triclinic
| a: | 32.3872 Å |
| b: | 8.6856 Å |
| c: | 8.6863 Å |
| α: | 89.446° |
| β: | 85.276° |
| γ: | 85.236° |
Starting materials: HI (Sigma Aldrich, 57% w/w), chloroform (Fisher, HPLC grade), tributylphosphate (Acros Organics, 99+%), PbI2 (Strem, 99.999+%), phenylethylamine (PEA, Sigma-Aldrich, >99.5%), diethyl ether (Fisher, ACS grade, anhydrous, stabilized with BHT)
Product: orange crystals
Description: 7 ml Unstabilized HI was treated with 10% v/v solution of tributylphosphate in chloroform. The aqueous phase (HI) was extracted. PbI2 (.231 g) was dissolved in the HI solution by heating to 100º C under N2 flow. In it, 0.13 ml PEA is added. The reaction is then cooled to room temperature, at a constant rate of 2 ºC/h. Then, the mixture is cooled at 4ºC for 30 minutes, filtered, washed with diethyl ether, and dried overnight under vacuum at 50 °C.
Method: Single crystal X-Ray Diffraction
Description: SCXRD data are collected on a Bruker Kappa APEX II DUO diffractometer with a CCD area detector employing graphite-monochromated Mo Kα radiation (λ = 0.710 73 Å). Crystals for SCXRD measured at 100 K are cooled by an Oxford Cryostream.
See all entries for this property (27 total)
Crystal system: triclinic
| a: | 32.36228759 Å |
| b: | 8.656864548 Å |
| c: | 8.703322465 Å |
| α: | 89.38493639° |
| β: | 85.61457255° |
| γ: | 85.42934587° |
Code: FHI-aims
Level of theory: DFT
Exchange-correlation functional: PBE (with TS scheme to account for the Van der Waals effect)
K-point grid: 2*4*4
Basis set definition: tight
Numerical accuracy: force convergence 5e-3 eV/AA
Comment: See Table S2 of Wright et al. (https://doi.org/10.1021/acs.chemmater.1c04213). This structure was constructed based on the experimental T= 100 k (PEA)2PbI4 structure published by Straus et al. (doi: 10.1021/acs.jpclett.9b00247.)