Dresden 2020 – scientific programme
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O: Fachverband Oberflächenphysik
O 84: Poster Session - Solid-Liquid Interfaces: Reactions and Electrochemisty
O 84.10: Poster
Wednesday, March 18, 2020, 18:15–20:00, P2/EG
Surface plasmon resonance spectroscopy for surface reactions in aggressive organic solvents — •Adrian Joe Urban1, Daniel Nürenberg1, Deb Kumar Bhowmick2, and Helmut Zacharias1 — 1Center for Soft Nanoscience, Busso-Peus-Straße 10, Münster — 2Faculty of Chemistry, Department of Chemical Physics, Weizmann Institute of Science, Rehovot, Israel
Surface plasmon resonance (SPR) spectrometry in the Kretschmann configuration is a well established method to probe the gold-liquid interface. Commercially available devices typically work with aquaeous solutions as the liquid phase while devices for more challenging solvents are rare. We have constructed an SPR spectrometer suitable for aggressive organic solvents and air-sensitive reagents in order to investigate the self-assembly of catalytically active, gold-based systems in organic solution. As a proof of concept, we have studied the self-assembly kinetics of alkanethiole monolayers on a gold-surface. In these experiments, we obtained angle resolutions of up to Δθ = 0.01∘, corresponding to Δ n≤ 10−3. Formation of the monolayers was complete after fifteen minutes.