Figure 3

(a) S1 transition configuration of 1, 2, and 3, (b) HOMO-1, HOMO and LUMO distribution, (c) S1 PES by twisting TPA, (d) S1 PES by twisting PA.
(a) S1 transition configuration of 1, 2, and 3, (b) HOMO-1, HOMO and LUMO distribution, (c) S1 PES by twisting TPA, (d) S1 PES by twisting PA.