Figure 2
(a) Partial crystal structure of (I), showing the formation of D = R22(18), E = R43(30) and F = R44(38) fused rings running along [0] and (b) G = R33(37) and H = R33(15) fused rings. These fused rings run along [001]. Symmetry code: (vi) x − 1, y − 1, z + 1. |