TABLE 1.

Compounda	R	Pitch (nm)b	Van der Waals Volume (Å3)
5		∞	58.1
6		22 ± 2	92.7
7		22 ± 2	110.0
8		∞	113.4
9		160 ± 30	130.7
10		40 ± 3	148.0
11		22 ± 2	165.3
12		22 ± 2	182.6
13		∞	104.4
14		90 ± 10	218.2
15		90 ± 10	235.5
16		74 ± 6	292.3

^aAll compounds were synthesized using l-amino acids.

^bThe pitch values are averages obtained from AFM height images corresponding to tens of nanostructures.