Functionalized arylacetylene oligomers for Organic Thin-Film Transistors (OTFTs)

V. A.L. Roy, Yong Gang Zhi, Zong Xiang Xu, Sze Chit Yu, Philip Wai Hong Chan, Chi Ming Che

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52 Citations (Scopus)


The preparation of arylacetylene oligomers comprising of three repeating phenylene ethynylene units containing para-substituted electron-donating or electron-withdrawing substitutents was analyzed. The compounds were prepared with product yields up to 91% using a synthetic strategy based on a simple iterative and convergent Pd/Cu-coupling and desilylation protocol. The preparation included treatment of the respective trialkylsilyl iodide and terminal arylalkyne starting material in the presence of PdCl 2(PPh3)2 and CuI at room temperature. It was observed that the relative planar configuration of arylacetylene moieties along the molecules was important for the on-off switch stage.

Original languageEnglish
Pages (from-to)1258-1261
Number of pages4
JournalAdvanced Materials
Issue number10
Publication statusPublished - 13 May 2005
Externally publishedYes

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