Potassium amide
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| Template:Longitem | Template:Chem2 |
| Molar mass | Template:Chem molar mass |
| Appearance | white solid |
| Odor | ammonia-like |
| Density | 1.57 g/cm 3 |
| Melting point | Template:Chembox CalcTemperatures |
| Solubility | ammonia: 3.6 g/(100 mL) |
| Template:Longitem | −128.9 kJ/mol |
| Template:Longitem | Lithium amide Sodium amide |
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Potassium amide is an inorganic compound with the chemical formula Template:Chem2. Like other alkali metal amides, it is a white solid that hydrolyzes readily. It is a strong base.[1]
Production
Potassium amide is produced by the reaction of ammonia with potassium. The reaction typically requires a catalyst.[2]
Structure
Traditionally Template:Chem2 is viewed as a simple salt, but it has significant covalent character and is highly aggregated in ammonia solution.Script error: No such module "Unsubst". The compound has been characterized by X-ray crystallography as the solvent-free form[3] as well as the mono- and diammonia solvates. In Template:Chem2, the potassium centers are each bonded to two amido ligands and four ammonia ligands, all six of which bridge to adjacent potassium centers. The result is a chain of hexacoordinate potassium ions. The K–Template:Chem2 distances are 2.7652(11) whereas the K–Template:Chem2 distances are respectively 2.9234(11) and 3.0698(11) Å.[4]
References
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