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Thermal Stripping of Supramolecular Structures: C60 Nanorods

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Abstract:

The investigated ionic C60 derivative self-assembles into nanorods. When the functional side groups are removed by heating the nanorods to 623 K, they retain their shape. Utilization of lithographic markers allows the study of identical nanostructures before and after heat treatment by dynamic mode atomic force microscopy. Various independent techniques, including Raman spectroscopy and mass spectroscopy demonstrate that the shape-preserving mechanism is a thermal-stripping process, stabilizing the original supramolecular morphology. The latter implies two coherent subprocesses: detachment of the side groups and oligopolymerization running in parallel, eventually yielding rod-shaped C60 polymers. Synthesizing fullerenic polymers in this way can lead to several applications.

Keywords: ATOMIC FORCE MICROSCOPY; FULLERENE SUPRAMOLECULES; FULLERENIC POLYMERS; MOLECULAR ELECTRONICS; RAMAN SPECTROSCOPY; SELF-ASSEMBLY; THERMAL STRIPPING

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2005.026

Publication date: February 1, 2005

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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