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Self-assembly of Complex Two-dimensional Shapes from Single-stranded DNA Tiles

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D3h-symmetrical hydrogen-bonding unit as a saccharide recognition and self-assembling module.

Hajime Abe¹, Asuka Horii, Shinya Matsumoto

¹Graduate School of Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama, Toyama 930-0194, Japan. abeh@pha.u-toyama.ac.jp

Organic Letters

|June 6, 2008

Summary

This study explores a triresorcinol molecule

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Area of Science:

Supramolecular Chemistry
Organic Chemistry
Molecular Recognition

Background:

Triresorcinol derivatives are investigated for their self-assembly and guest-binding properties.
Hydrogen bonding plays a crucial role in molecular recognition and the formation of supramolecular structures.

Purpose of the Study:

To investigate the hydrogen-bonding capabilities of a D(3h)-symmetrical triresorcinol module (3) for glycoside recognition.
To study the self-association behavior of the triresorcinol module, including its potential for gelation.

Main Methods:

Nuclear Magnetic Resonance (NMR) spectroscopy ((1)H NMR)
UV-Vis spectroscopy
Circular Dichroism (CD) spectroscopy
Titration experiments
X-ray diffraction analysis

Main Results:

The triresorcinol module (3) demonstrated significant changes in NMR, UV, and CD spectra upon interaction with a glycoside.
Titration studies revealed both 1:1 and 1:2 binding stoichiometries between the triresorcinol module and a glucosamine derivative guest.
Self-association of the triresorcinol module led to the formation of a gel in CDCl(3), as confirmed by (1)H NMR and X-ray analysis.

Conclusions:

The D(3h)-symmetrical triresorcinol module exhibits effective hydrogen-bonding for recognizing glycoside derivatives.
The molecule self-associates to form gels, indicating potential applications in materials science and drug delivery.