期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 137, 期 6, 页码 2392-2399出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja512959g
关键词
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资金
- Joint Center of Excellence in Integrated Nano-Systems (JCIN) at King Abdul-Aziz City for Science and Technology (KACST) [34-947]
- Office of Science, Office of Basic Energy Sciences, U.S. Department of Energy [DE-FG02-00ER45810]
- National Defense Science and Engineering Graduate Fellowship from the Department of Defense
- Ryan Fellowship
- NU International Institute for Nanotechnology (IIN)
- National Science Foundation
- Netherlands Organisation for Scientific Research (NWO)
- Marie Curie Cofund Action (Rubicon Fellowship)
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1006713] Funding Source: National Science Foundation
Although pristine C-60 prefers to adopt a face-centered cubic packing arrangement in the solid state, it has been demonstrated that noncovalent-bonding interactions with a variety of molecular receptors lead to the complexation of C-60 molecules, albeit usually with little or no control over their long-range order. Herein, an extended viologen-based cyclophaneExBox(2)(4+)has been employed as a molecular receptor which, not only binds C-60 one-on-one, but also results in the columnar self-assembly of the 1:1 inclusion complexes under ambient conditions. These one-dimensional arrays of fullerenes stack along the long axis of needle-like single crystals as a consequence of multiple noncovalent-bonding interactions between each of the inclusion complexes. The electrical conductivity of these crystals is on the order of 10(7) S cm(1), even without any evacuation of oxygen, and matches the conductivity of high-quality, unfunctionalized C-60-based materials that typically require stringent high-temperature vaporization techniques, along with the careful removal of oxygen and moisture, prior to measuring their conductance.
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