Figure 3
The CrF3 structure at ambient pressure and 9.12 GPa viewed along the c axis. Symmetry allows for two independent F—F distances d1 and d2 within each CrF6 octahedron, as marked on the lower figure. The octahedral strain is due to an elongation of the octahedra along the c axis with d1 = 2.641 (5) Å and d2 = 2.672 (2) Å at 9.12 GPa. The hexagonal unit cell is shown with solid lines. |