See all entries for this property (5 total)
Crystal system: cubic
| a: | 6.2397 (±0.0005) Å |
| b: | 6.2397 (±0.0005) Å |
| c: | 6.2397 (±0.0005) Å |
| α: | 90° |
| β: | 90° |
| γ: | 90° |
Starting materials: Tin (II) oxide, HI (aq), ethylene glycol, argon, nitrogen
Product: Black-green powder.
Description: Dissolve Tin (II) oxide (10.40 g, 27.9 mmole) in 20 ml of a concentrate (57% by weight) HI (aq) in a test tube under flowing argon. Add another 8.0 ml of aqueous HI to a test tube containing CH3NH3-HI (4.44g, 27.9 mmole). Gently heat solution to 90.0 °C in a water/ethylene glycol bath to facilitate dissolution. Mix warm CH3NH2-HI and SNI2 solutions and cool the resulting yellow solution to room temperature. Filter the black-green precipitate that forms under flowing nitrogen and dry under flowing argon at 100 °C for 5 hr. Yield is typically 76 %. CH3NH3SnI3 is air sensitive and decomposes in air within several hours. All samples are stored and manipulated for the various measurements in an argon-filled glove box with oxygen and water levels below 1 ppm.
Method: Powder X-ray diffraction
Description: Not specified. Refer to Page 160 Experimental paragraph 1.
Comment: The reference for the assignment of the PXRD peaks is not available.
See all entries for this property (5 total)
Crystal system: cubic
| a: | 6.2 Å |
| b: | 6.2 Å |
| c: | 6.2 Å |
| α: | 90° |
| β: | 90° |
| γ: | 90° |
Starting materials: Tin (II) oxide, HI (aq), ethylene glycol, argon, nitrogen
Product: Black single crystal
Description: Dissolve Tin (II) oxide (10.40 g, 27.9 mmole) in 20 ml of a concentrate (57% by weight) HI (aq) in a test tube under flowing argon. Add another 8.0 ml of aqueous HI to a test tube containing CH3NH3-HI (4.44g, 27.9 mmole). Gently heat solution to 90.0 °C in a water/ethylene glycol bath to facilitate dissolution. Mix warm CH3NH2-HI and SNI2 solutions and cool the resulting yellow solution to room temperature. Filter the black-green precipitate that forms under flowing nitrogen and dry under flowing argon at 100 °C for 5 hr. Yield is typically 76 %. CH3NH3SnI3 is air sensitive and decomposes in air within several hours. All samples are stored and manipulated for the various measurements in an argon-filled glove box with oxygen and water levels below 1 ppm. Use 2.0 g of CH3NH3SnI3 and equilibrate at 90.0 °C in a water/ethylene glycol bath. Add sufficient HI under flowing argon to dissolve the entire charge (about 11 ml). Cool the solution to -10.0 °C at 2 °C/hr. The small black crystals grow in a rhombic dodecahedral habit.
Method: X-ray diffraction
Description: Not specified. Refer to Page 160 Experimental paragraph 1,3.