Figure 2
Superimposition of the X-ray structures of the neutral species found in the CSD (Groom et al., 2016). Structures are superimposed as ball-and-stick atoms. H atoms have been omitted for clarity. Upper left: aT conformation (BEMBOK = red; GAPZEE = violet; KAZPOQ = brown); upper right: tttg+ conformation (CEZVIN = black; CIDHAZ = green); lower left: ttg−t conformation (ROKNUB = pink); lower right: ttg+g+ conformation (CIDHAZ = pale blue). |