See all entries for this property (2 total)
Crystal system: orthorhombic
a: | 7.748 (±0.002) Å |
b: | 7.79 (±0.002) Å |
c: | 20.859 (±0.003) Å |
α: | 90° |
β: | 90° |
γ: | 90° |
Starting materials: Lead chloride, 2-naphthylmethyl-amine, HCl, DMF
Product: Colorless crystals
Description: Slowly evaporate the solvent from a solution of lead chloride and 2-naphthylmethyl-ammonium chloride with the ratio 1:2 in dimethylformamide. Prepare 2-naphthylmethyl-amine (NMA) according to the procedure outlined in [1] and [2]. Add a stoichiometric amount of 37% concentrated HCl to prepare the adjunct hydrochloride salt.
Comment: References: [1] Ellis, G. P.; Romney-Alexander, T. M.: Cyanation of Aromatic Halides. Chem. Rev. 87 (1987) 779. [2] Dahn,H.; Zoller,P.;Solms,U.:Über die Hydrogenolyse von alpha- und beta-Menaphthylamin-Derivaten. Helv. Chim. Acta 37 (1954) 569.
Method: X-ray diffraction
Description: Nicolet P3, Wyckoff diffractometer with Mo Ka radiation (0.71073 Â)
Starting materials: (NMA)2PbCl4 crystals, DMF, quartz substrates
Product: Thin film on quartz
Description: Dissolve the 2D single crystals into DMF at a concentration 6%∼10% relative to the total weight. Spin-coat at 3000 rpm for 30 s on quartz substrates. Anneal in air at 100 °C for 10 min before measurement.
Method: Photoluminescence
Description: The photoluminescence spectra were measured using a Horiba-Jobi-Yvon LabRAM ARAMIS system, with a 325 nm He−Cd laser excitation. The laser beam was collimated and focused through a 40X UV objective onto the sample surface at room temperature.
See all entries for this property (2 total)
Crystal system:
Code: FHI-aims
Level of theory: density functional theory
Exchange-correlation functional: HSE06 α = 0.25, ω = 0.11/bohr
K-point grid: 4x4x3
Level of relativity: atomic ZORA with spin-orbit coupling
Basis set definition: tight
Crystal system: orthorhombic
Photoluminescence peak position, nm |
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Starting materials: (NMA)2PbCl4 crystals, DMF, quartz substrates
Product: Thin film on quartz
Description: Dissolve the 2D single crystals into DMF at a concentration 6%∼10% relative to the total weight. Spin-coat at 3000 rpm for 30 s on quartz substrates. Anneal in air at 100 °C for 10 min before measurement.
Method: Photoluminescence
Description: The photoluminescence spectra were measured using a Horiba-Jobi-Yvon LabRAM ARAMIS system, with a 325 nm He-Cd laser excitation. The laser beam was collimated and focused through a 40X UV objective onto the sample surface at room temperature. Refer to figure 5.
Starting materials: (NMA)2PbCl4 crystals, DMF, quartz substrates
Product: Thin film on quartz
Description: Dissolve the 2D single crystals into DMF at a concentration 6%∼10% relative to the total weight. Spin-coat at 3000 rpm for 30 s on quartz substrates. Anneal in air at 100 °C for 10 min before measurement.
Method: UV-Vis absorption
Description: Optical absorption spectra were obtained using a Shimadzu UV-3600 spectrophotometer.