Table 2 Comparison of the tilt angle of n = 2 RPP in non-exfoliated bulk interface, monolayer surface, and h-BN covered monolayer surface according to the simulation models.

From: Unlocking surface octahedral tilt in two-dimensional Ruddlesden-Popper perovskites

 

Bulk

Monolayer

h-BN covered monolayer

Bond angle of n = 2 RPP

BA tilt angle Ω1; Ω2 (°), respectively

13.3; 16.1

19.5; 17.5

26.9; 26.6

Out of plane tilt: Δθ (°)

11.5

24.7

12.4

In-plane tilt: Δγ (°)

22.8

25.5

27.5