A novel thiophene-fused polycyclic aromatic with a tetracene core: synthesis, characterization, optical and

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Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level
06:55

Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level

Published on: September 26, 2016

Zong-Fan Duan1, Xian-Qiang Huang, Zhi-Gang Yang

  • 1College of Science and Technology, Nihon University, Narashinodai, Funabashi, Chiba 2748501, Japan. duanzf-2002@163.com

Molecules (Basel, Switzerland)
|May 31, 2011
PubMed

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Cycloheptatriene is a neutral monocyclic unsaturated hydrocarbon that consists of an odd number of carbon atoms and an intervening sp3 carbon in the ring. The three double bonds in the ring correspond to 6 π electrons, which is a Huckel number, and therefore satisfies the criteria of 4n + 2 π electrons. However, the intervening sp3 carbon disrupts the continuous overlap of p orbitals. As a result, cycloheptatriene is not aromatic.
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