Figure 5
(a) Transformation of UC1 (black) to TC1 (red); transformation matrix, Tx = [0 0 −1 / 0 1 0 / 2 0 1]. (b) Transformation of UC2 (black) to TC2 (blue); transformation matrix, Tx = [−1 0 0 / 0 −1 0 / 1 0 1]. Solid and dashed green lines indicate the positions of molecular layers parallel to the bc plane in all unit cells. TC1 and TC2 have the same metric parameters, but the structural models in them are quite different (see §4). |