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/lp/springer-journals/reactive-bubbly-flows-control-of-the-formation-and-reaction-of-copper-Xl9kQfMxGR
- Publisher
- Springer International Publishing
- Copyright
- © The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerland AG 2021
- ISBN
- 978-3-030-72360-6
- Pages
- 7 –38
- DOI
- 10.1007/978-3-030-72361-3_3
- Publisher site
- See Chapter on Publisher Site
Abstract
[Bioinorganic copper complexes can activate dioxygen and transfer it to substrates under very mild reaction conditions. By the choice of ligand, the rate of oxygen activation, stability of the Cu/O2 species and rate of subsequent reaction can be tuned. Moreover, the spectroscopic response for spatially and temporarily resolved investigations can be tailored to the demands within the SPP1740. Based on the guanidine donor function, we developed several generations of guanidine systems for O2 transfer in the SPP1740, starting with the classic btmgp bisguanidine over fluorescent bisguanidines (based on the toluene backbone) to highly efficient catalytically active aromatic hybrid guanidine systems. These systems allow the efficient transformation of a plethora of phenolic substrates to the corresponding quinones. To trap the highly reactive quinones, we used 1,2-phenylenediamine for the transformation into phenazines which can be isolated. In parallel, we investigated simple ammonia and bisamine systems for their utilization in Taylor bubbles and reaction apparatuses in the SPP. Selected systems have also been studied by stopped flow spectroscopy and in the SuperFocus mixer, as well as theoretical methods for the details of the oxygen activation process. This chapter lays the chemical foundation for the application of Cu/O2 systems in Chapters “Determination of Kinetics for Reactive Bubbly Flows Using SuperFocus Mixers”–“Investigation of Reactive Bubbly Flows in Technical Apparatuses”.]
Published: Jul 30, 2021