Fig. 3: Variation of octahedral distortion upon intercalation.
a Comparison of individual octahedral distortion parameters Δd (scatter plot with reference to left y-axis) and σ2 (scatter plot with reference to right y-axis) for parent17,19,21,30,67 and intercalated structures (m = 6, 8, 9). b Comparisons of octahedral distortion for three m = 7 intercalated perovskites. c Schematic of two inter-octahedral distortion parameters: equatorial Pb–X–Pb angle and equatorial Pb–Pb distance. Pb is shown in pink and X in purple. d Comparisons of inter-octahedral distortion parameters equatorial Pb–X–Pb angle (scatter plot with reference to left y-axis) and equatorial Pb–Pb distance (scatter plot with reference to right y-axis) before and after halogen intercalation. e Comparison of inter-octahedral distortions between the intercalated perovskites which differ in m numbers.
