Controlling the stereospecific bonding motif of Au-thiolate links and assessment of their catalytic properties

POSTER

Abstract

Organosulfur compounds at the interface of noble metals have long been proved to be extremely versatile systems. In this work we explore the formation of gold-thiolate-based organometallic structures from 1,4-bis(4-mercaptophenyl) benzene (BMB) deposited onto Au(111) surface. By controlling the on-surface reaction conditions we can selectively choose the resulting structures to be either arrays of cyclic Au3BMB3 units or linearly stacked nanowires, although the former turn out to be the thermodynamically favored products[1]. Most interestingly, co-deposition of alkyne-functionalized pyrene derivatives on this system reveals the catalytic activity of the R-S-Au-S-R vertices on alkyne coupling reactions.

Reference:
[1] L. Colazzo, M. S. G. Mohammed, A. Gallardo, Z. M. Abd El-Fattah, J. A. Pomposo, P. Jelínek and D. G. de Oteyza, Nanoscale 2019, DOI: 10.1039/c9nr04383g

*The project leading to this contribution has received funding from the European
Research Council (ERC) under the European Union’s Horizon 2020 research and
innovation programme (grant agreement No 635919), from the Spanish Ministry of
Economy, Industry and Competitiveness (MINECO, Grant No. MAT2016-78293-C6).

Presenters

  • Mohammed Sabri G. Mohammed

    • Donostia International Physics Center

Authors

  • Mohammed Sabri G. Mohammed

    • Donostia International Physics Center

  • Luciano Colazzo

    • Donostia International Physics Center

  • Aurelio Gallardo

    • The Czech Academy of Sciences

  • Zakaria M Abd El-Fattah

    • Al-Azhar University

  • José A. Pomposo

    • Centro de Física de Materiales (CFM-MPC), CSIC-UPV/EHU

  • Pavel Jelínek

    • The Czech Academy of Sciences

  • Dimas García de Oteyza

    • Donostia International Physics Center