Xu, T., Ng, P. W., Wu, S., Fu, D., Ma, Y., Liu, Y., Li, L., Zhang, X., & Zhu, J. (2024). Topology modulation of tetraphenylethylene graphdiyne at a liquid-liquid interface. Nano Research. https://doi.org/10.1007/s12274-024-6457-0
Abstract:
Monomers with low symmetries can form different topological structures in the preparation of organic 2D materials. However, it remains challenging to modulate the topologies in practical synthesis. Leveraging theoretical insights into the formation energy of potential structural configurations, we report the topology modulation of a graphdiyne (GDY) derivative constructed from two-fold symmetric tetraphenylethylene (TPE) monomers by changing solvent combinations in a liquid-liquid interfacial system. An aqueous-organic (water-dichloromethane) interface afforded GDY with a kagome topology while a rhombic topology was formed at an organic-organic (hexane-acetonitrile) interface. A comprehensive evaluation of their structures and optoelectronic properties was conducted through various characterization techniques and theoretical computations. Our study provided new insights to modulate the topology of not only GDY but also other framework structures and obtain topologically pure materials in situations where different topologies are possible during practical synthesis.
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Funding Info:
This research / project is supported by the A*STAR - Career Development Fund
Grant Reference no. : C233312013
This research / project is supported by the A*STAR - Career Development Fund
Grant Reference no. : 222D800034
Description:
This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: http://dx.doi.org/10.1007/s12274-024-6457-0