See all entries for this property (20 total)
| Initial crystal system | unknown |
| Final crystal system | unknown |
| Initial space group | unknown |
| Final space group | unknown |
| Direction | both |
| Phase transition temperature | 164.0 K |
Hysteresis: NIL
| Initial crystal system | unknown |
| Final crystal system | unknown |
| Initial space group | unknown |
| Final space group | unknown |
| Direction | both |
| Phase transition temperature | 315.0 K |
Hysteresis: NIL
Starting materials: HI, CH3NH2, Pb(NO3)2
Product: N-deuterated MAPbI3 crystals
Description: Add concentrated HI to neutralize 20 g of 40% CH3NH2 aqueous solution (D2O-H2O mixture). Add 7.1 g (0.021 mol) of Pb(NO3)2 solution drop-wise under vigorous stirring at 100°C to the concentrated CH3NH3I solution. Organic crystals form while dripping in the solution. Cool the solution to not below 40°C and filter out the crystals. Wash crystals firstly with n-butanol and then with benzene; subsequently dry crystals in vacuum.
Comment: Synthesis references: [1] D. Weber, Z. Naturforsch. 33b, 1443 (1978).
Method: 2H and 14N NMR
Description: 2H and 14N NMR spectra were recorded at 55.4257 and 26.083 MHz, respectively, on a Nicolet 360 NB spectrometer (B0 = 8.48 T). Refer to Page 581.
See all entries for this property (6 total)
| Initial crystal system | unknown |
| Final crystal system | unknown |
| Initial space group | unknown |
| Final space group | unknown |
| Direction | both |
| Phase transition temperature | 150.0 K |
Hysteresis: NIL
| Initial crystal system | unknown |
| Final crystal system | unknown |
| Initial space group | unknown |
| Final space group | unknown |
| Direction | both |
| Phase transition temperature | 233.0 K |
Hysteresis: NIL
Starting materials: HBr, CH3NH2, Pb(NO3)2
Product: N-deuterated MAPbBr3 single crystals
Description: Add concentrated HBr to neutralize 20 g of 40% CH3NH2 aqueous solution (D2O-H2O mixture). Add 7.1 g (0.021 mol) of Pb(NO3)2 solution drop-wise under vigorous stirring at 100°C to the concentrated CH3NH3Br solution. Red organic crystals form while dripping in the solution. Cool the solution to room temperature and filter out the crystals. Wash crystals firstly with n-butanol and then with benzene; subsequently dry crystals in vacuum.
Comment: Synthesis references: [1] D. Weber, Z. Naturforsch. 33b, 1443 (1978).
Method: 2H and 14N NMR
Description: 2H and 14N NMR spectra were recorded at 55.4257 and 26.083 MHz, respectively, on a Nicolet 360 NB spectrometer (B0 = 8.48 T). Refer to Page 581.
See all entries for this property (5 total)
| Initial crystal system | unknown |
| Final crystal system | unknown |
| Initial space group | unknown |
| Final space group | unknown |
| Direction | both |
| Phase transition temperature | 175.0 K |
Hysteresis: NIL
Starting materials: Not specified
Product: MAPbCl3 single crystals
Description: The procedure mentioned in ref [1] for MAPbBr3 was modified. A D2O-H2O mixture was used to prepare the N-deuterated samples.
Comment: Synthesis references: [1] D. Weber, Z. Naturforsch. 33b, 1443 (1978).
Method: 2H and 14N NMR
Description: 2H and 14N NMR spectra were recorded at 55.4257 and 26.083 MHz, respectively, on a Nicolet 360 NB spectrometer (B0 = 8.48 T). Refer to Page 581.