Low and high temperature crystal structures of TiI3
What is it about?
The linear thermal expansion is highly anisotropic and small along c (i.e. along chains of Ti atoms) in the low-temperature phase, while above Tc it is much larger along c. On heating, thermal expansion of TiI3 is found to increase abruptly at the phase transition at Tc = 323 K.
Why is it important?
The ratio between the long and the short Ti—Ti distances on the metal chains serve as order parameter.
The following have contributed to this page: Priv.-Doz. Dr. Andreas Schönleber
In partnership with: