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

Literature Information

Publication Date 2019-10-17
DOI 10.1039/C9CC07168G
Impact Factor 6.222
Authors

Qiang Sun, Ian Cheng-Yi Hou, Kristjan Eimre, Carlo A. Pignedoli, Pascal Ruffieux


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Abstract

Azulene, the smallest neutral nonalternant aromatic hydrocarbon, serves not only as a prototype for fundamental studies but also as 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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