The grossly warped nanographene has interesting optical and electronic properties © NPG

A new family of nanocarbons has emerged with the growth of the first non-planar nanographene. Chemists from Boston College, US, and Nagoya University, Japan successfully synthesised a grossly warped nanographene by embedding non-hexagonal rings into a nanographene subunit. The unique structure was found to have optical and electronic properties distinct from other all-carbon families. An ability to control the degree of distortion with odd-numbered rings could be a potential means of developing tailor-made graphene for future optoelectronic devices

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This model shows the five-sided cyanostar macrocycle capturing perchlorate at its center. (Credit: Amar Flood)], Chemists at Indiana University Bloomington have created a symmetrical, five-sided macrocycle that is easy to synthesize and has characteristics that may help expand the molecular tool box available to researchers in biology, chemistry and materials sciences.The molecule, which the researchers call cyanostar, was developed in the lab of Amar Flood, associate professor in the Department of Chemistry in the College of Arts and Sciences. It is described in an article in the journal Nature Chemistry, scheduled for publication in August and available online. Semin Lee, Chun-Hsing Chen, Amar H. Flood. A pentagonal cyanostar macrocycle with cyanostilbene CH donors binds anions and forms dialkylphosphate [3]rotaxanes. Nature Chemistry, 2013; DOI: 10.1038/nchem.1668

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