What Is The Crystal Structure Of Silver Iodate?

Silver iodate (AgIO3) has a crystal structure that belongs to the orthorhombic crystal system with space group Pna2₁. The crystal lattice of AgIO3 consists of alternating layers of silver ions and iodate anions stacked along the c-axis.

The coordination geometry around the silver ion is distorted octahedral, where six oxygen atoms from three iodate anions coordinate with the central silver ion. Each iodate anion (IO3-) is trigonal planar in shape, with one iodine atom at the center bonded to three oxygen atoms through single bonds.

The lattice parameters for AgIO3 are a= 0.5904 nm, b=1.1003 nm, and c=0.5979 nm, and the unit cell volume is 0.3836 nm³. The crystal structure of AgIO3 is similar to other compounds such as potassium fluoride (KF) or sodium chloride (NaCl), where the lattice is composed of alternating positively and negatively charged ions arranged in a regular pattern.

Overall, the crystal structure of AgIO3 is characterized by its layered structure, with silver ions located between two adjacent layers of iodate anions arranged in a hexagonal pattern.