10.18453/rosdok_id00002740 Adomeit, Sven Sven Adomeit http://d-nb.info/gnd/1191927156 Universität Rostock 2019 540 Chemistry & allied sciences 2019 en http://purl.uni-rostock.de/rosdok/id00002740 urn:nbn:de:gbv:28-rosdok_id00002740-2 Aerobic alcohol oxidation is a route to convert alcohols into aldehydes using homogenous Cu catalysts with O2 as the terminal oxidant. It is well-known that the Cu catalyst forms a Cu(I/II) shuttle during the reaction. To investigate still open issues coupled operando EPR/UV-vis/ATR-IR was used in a first step. Through this combination it was possible to observe distinctive effects of the structure and molar ratios of ligands/additives upon the redox behavior of the Cu(I/II) shuttle. The triple coupling was further developed into a 4-in-1 set-up by implementing X-ray absorption spectroscopy.