| Initial crystal system | orthorhombic |
| Final crystal system | tetragonal |
| Initial space group | Pna2_1 |
| Final space group | P4/mmm |
| Direction | Unknown |
| Phase transition temperature | 144.5 K |
Hysteresis: NIL
| Initial crystal system | tetragonal |
| Final crystal system | tetragonal |
| Initial space group | P4/mmm |
| Final space group | I4/mcm |
| Direction | Unknown |
| Phase transition temperature | 155.1 K |
Hysteresis: NIL
| Initial crystal system | tetragonal |
| Final crystal system | cubic |
| Initial space group | I4/mcm |
| Final space group | Pm3m |
| Direction | Unknown |
| Phase transition temperature | 236.9 K |
Hysteresis: NIL
Starting materials: lead (II) acetate, CH3NH3+ (by adding a 40% solution of CH3NH2 in water), concentrated HBr
Product: Orange MAPbBr3 crystals
Description: CH3NH3PbBr3 was synthesized from lead (II) acetate and CH3NH3+ dissolved in concentrated HBr solution. The aqueous solution was cooled from l00°C to room temperature to obtain the orange crystals.
Method: Temperature-dependent Guinier-Simon photograph
Description: No method specified. Refer to Page 6374 Table I.