期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 134, 期 17, 页码 7254-7257出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja301462e
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资金
- Office of Naval Research [N000141110465]
- National Science Foundation [CHE-1055514, CHE-1110911]
- University of Maryland
- Direct For Mathematical & Physical Scien
- Division Of Chemistry [1110911] Funding Source: National Science Foundation
- Division Of Chemistry
- Direct For Mathematical & Physical Scien [1055514] Funding Source: National Science Foundation
Making single-walled carbon nanotubes (SWNTs) soluble in water is a challenging first step to use their remarkable electronic and optical properties in a variety of applications. We report that acyclic cucurbit[n]uril molecular containers 1 and 2 selectively solubilize small-diameter and low chiral angle SWNTs. The selectivity is tunable by increasing the concentration of the molecular containers or by adjusting the ionic strength of the solution. Even at a concentration 1000 times lower than typically required for surfactants, the molecular containers render SWNTs soluble in water. Molecular mechanics simulations suggest that these C-shaped acyclic molecules complex the SWNTs such that a large portion of nanotube sidewalls are exposed to the external environment. These naked nanotubes fluoresce upon patching the exposed surface with sodium dodecylbenzene sulfonate.
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