Control of Chiral Assemblies Through Hydrogen Bondings for Helical Architectures - Molecular Self-Assembly: Advances and Applications - page 83

tendency to self-assemble through contribution of all available
hydrogen bonding donors in a solid state. An assembling of the
chirality-organized peptide bioconjugates is also achieved by metal-
directed assembly. The architectural control of molecular assemblies
utilizing peptide chains, which possess chiral centers and hydrogen
bonding sites, is envisioned to be a useful approach to artificial
highly ordered systems. The reversibility and tuneability of hydrogen
bonding are also of fundamental importance in the chemical and/or
physical properties of molecular assemblies.

(a)

O1

O3

N2*

N2

N1

N1*

O2*

N3*

O2

N4*

N3

O3*

N4

(b)

(c)

Figure 3.17 (a) Stick, (b) space-filling representations of a hydrogen-

bonded duplex of , and (c) space-filling representation

of a portion of a layer containing the double helix-like
arrangement of the crystal packing of

13

13 .