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Self-assembled Single-layer 2D Frameworks
Foundry Users have created the first 2D supramolecular organic framework (SOF) with honeycomb periodicity using a novel solution-based self-assembly approach.
Significance and Impact
Highly ordered and tunable SOFs lead to new layer-by-layer routes to the synthesis of complex architectures, with potential applications in gas purification, absorption, separation, sensing, and catalysis.
- A cross-linked 2D framework is assembled in water by joining triangular aromatic units with the macrocycle Cucurbituril through non-covalent interactions.
- The framework remains soluble in a single-layer form due to specific built-in steric groups that prevent inter-layer stacking.
- Single-layer 2D networks provide precise dimension control of resulting structures, which facilitates structural and chemical customization.
K. D. Zhang, J. Tian, D. Hanifi, Y. Zhang, A. C. Sue, T. Y. Zhou, L. Zhang, X. Zhao, Y. Liu, Z. T. Li. J. Am. Chem. Soc. 2013 [epub ahead of print].