Figure 4
(a) The Cr—F bond length (•), F—F distances (d1: ▪; d2: ♦) and (b) octahedral strain ∊ (▾) plotted as a function of pressure. The octahedral strain is seen to increase linearly up to 3.4 GPa and remains almost constant above this pressure. The increased octahedral strain reflects an elongation of the octahedra along the c axis. Solid lines are guides to the eye. |