Starting materials: phenyl ethyl ammonium iodide (C6H5CH2CH2NH3I) and tin iodide (SnI2)
Product: brown-golden plate-like (C6H5CH2CH2NH3)2SnI4 crystals
Description: In an argon atmosphere, 540 mg (2.16 mmol) of C6H5CH2CH2NH3I was mixed with 373 mg (1 mmol) of SnI2 in 10 ml of acetonitrile under stirring. 4 ml of the solvent was evaporated by heating at 75 degrees C. The solution was then cooled to 10 degrees C. Finally, the precipitate was filtered and dried at 40 degrees celsius.
Method: Photoluminescence
Description: The spectrum was recorded using Jobin-Yvon model HG2S Raman spectrophotometer, using an argon laser.
Starting materials: Tin(II) oxide (Sigma Aldrich, 97%), hydriodic acid (Sigma Aldrich, 57% w/w in H2O, 99.9%), hypophosphorous acid (Avra, 50% w/w H2O), phenylethylamine (Sigma Aldrich, 99.9%)
Product: (PEA)2SnI4 crystals
Description: Single crystals of (PEA)2SNI4 were synthesized by adding tin (II) oxide (0.6 mmol), hydriodic acid ( 5 mL), and hypophosphorous acid (3 mL) into a sealed vial and heated at 90 ˚C under constant stirring. After tin (II) oxide dissolved in the solution and yielded a dark yellow color, phenethylamine (1.2 mmol) was injected into the sealed vial by a syringe. A brown sheet of crystals of (PEA)2SNI4 produced after the solution was cooled to room temperature. The crystals were then obtained via filtration and were stored in an N2 glove box.
Method: Photoluminescence
Description: Recorded on FLS 980 (Edinburgh Instruments).