What Is The Structure Of Potassium Aluminate?

Potassium aluminate is a compound with the chemical formula KAlO2. It has a crystal structure that belongs to the monoclinic system, and its space group is C2/c. The compound consists of potassium cations (K+) and aluminate anions (AlO2^-), which are arranged in layers. The potassium ions occupy octahedral sites between the layers, while the aluminate ions form a two-dimensional network within the layers. The Al-O-Al bond angle in the aluminate ion is approximately 160 degrees, and the K-O distance is around 2.6 Å. Overall, the structure of potassium aluminate can be described as a layered arrangement of [AlO2]^- anions with K+ ions occupying the interlayer sites.