“…Interestingly, the two surfaces were stretched for about 6 nm before detachment (jump apart) as shown in Figure b, which indicates a stretch of each film by ∼3 nm. The extended length of C5Pe molecules was estimated to be 2.7 nm based on molecular configuration of C5Pe molecule, the bond lengths of C–C (SP 3 –SP 3 ), C–N, C–O, and C–C (benzene) to be 0.15, 0.14, 0.14, and 0.14 nm, respectively, and the bond angle to be 109.5°, 180°, 180°, and 120°, respectively. , The actual molecular length of C5Pe should be smaller than 2.7 nm. The stretching associated with separation shown in Figure b confirms that C5Pe molecules aggregate on mica surface upon exposure to aqueous environment, as also visualized by AFM imaging.…”