Sulfur-driven switching of the Ullmann coupling on Au(111)

Jonathan Rodríguez-Fernández*, Søren Birthin Schmidt, Jeppe V. Lauritsen

*Corresponding author for this work

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

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We demonstrate a method to selectively switch the Ullmann coupling reaction of 2,8-dibromodibenzothiophene on a Au(111) support. The Ullmann coupling reaction is effective already at low temperature, but the complete inhibition of the same reaction can be achieved on Au(111) pre-exposed to H2S. The marked difference in reactivity of pretreated Au(111) is explained by the S-passivation of free Au atoms emerging from reconstruction sites. The inhibited state can be fully lifted by removing the S via hydrogen gas post-exposure.

Original languageEnglish
JournalChemical Communications
Pages (from-to)3621-3624
Number of pages4
Publication statusPublished - 19 Mar 2018


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