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arXiv · 1911.01090

On-surface synthesis of polyazulene with 2,6-connectivity

Qiang Sun·Ian Cheng-Yi Hou·Kristjan Eimre·Carlo A. Pignedoli·Pascal Ruffieux·Akimitsu Narita·Roman Fasel
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Abstract

Azulene, the smallest neutral nonalternant aromatic hydrocarbon, serves as not only a prototype for fundamental studies but also a versatile building block for functional materials because of its unique opto(electronic) properties. Here, we report the on-surface synthesis and characterization of the homopolymer of azulene connected exclusively at the 2,6-positions using 2,6-diiodoazulene as the monomer precursor. As an intermediate to the formation of polyazulene, a gold-(2,6-azulenylene) chain is observed.

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Qiang Sun, Ian Cheng-Yi Hou, Kristjan Eimre, Carlo A. Pignedoli, Pascal Ruffieux, Akimitsu Narita, Roman Fasel. 2019-11-04. On-surface synthesis of polyazulene with 2,6-connectivity. https://doi.org/10.1039/c9cc07168g

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