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Highly Efficient Preparation of Single-Layer Two-Dimensional Polymer Obtained from Single-Crystal to Single-Crystal Synthesis.
- Source :
-
Journal of the American Chemical Society [J Am Chem Soc] 2021 Apr 21; Vol. 143 (15), pp. 5636-5642. Date of Electronic Publication: 2021 Apr 13. - Publication Year :
- 2021
-
Abstract
- A two-dimensional polymer (2DP) single crystal ( T-2DP ) with submillimeter size was synthesized by single-crystal to single-crystal transformation based on photochemical [2 + 2]-cycloaddition. A successful conversion from monomer to polymer was achieved in the single-crystal state. The structure information with an atomic resolution of both the monomer and 2DP was given through single-crystal X-ray diffraction. By simply treated with trifluoroacetic acid (TFA) under mild conditions, an unprecedented efficiency of exfoliation was achieved. The triazine core in T-2DP could be protonated by TFA, which resulted in a solution-like sample with >60% of monolayers. The size of the exfoliated monolayer reaches to several hundreds of μm <superscript>2</superscript> . This is another precious example of 2DP single crystal with nearly perfect structure and large enough size. The successful preparation of the highly desirable 2DP "solution" for a long time containing large sized and large amount of 2DP monolayers may open up new prospects for the basic properties study and the applications of 2DPs.
Details
- Language :
- English
- ISSN :
- 1520-5126
- Volume :
- 143
- Issue :
- 15
- Database :
- MEDLINE
- Journal :
- Journal of the American Chemical Society
- Publication Type :
- Academic Journal
- Accession number :
- 33848155
- Full Text :
- https://doi.org/10.1021/jacs.1c00907