Time: 9 - 12
Place: Zoom (by invitation only)
“Mechanistic studies of photoredox catalysis and new emissive first-row transition metal complexes”
Time: 15:15 - 16:00 approx.
Place: Ångströmlab, House 7, floor 1; and on Zoom (see link below)
Abstract: "Photoredox catalysis is typically based single electron transfer (SET), to generate radicals that engage in follow-up reactions leading to the desired products. In the first part of this talk, I will present evidence for photo-triggered hydrogen atom transfer (HAT) reactions of an iridium hydride complex, enabling the catalytic hydrogenation of olefins. The presumed HAT photoreactivity seen in this case contrasts the typical SET chemistry of photoredox catalysis.
The second part will concentrate on photoredox reactions relying on biphotonic excitation, in particular on so-called sensitization-initiated electron transfer. Synthetically, this seems to be a very useful strategy to pool the energy of multiple low-energy photons and to use their combined energy for thermodynamically challenging photoreactions, but obtaining proper mechanistic insight of has proven somewhat difficult. I will present our own insights and contributions to this topic. In the third part of the talk, I will present our latest results on luminescent complexes made from first-row transition metals, in particular the cases of Mn(I) and Cr(0), which have the same d 6 valence electron configuration as well-known Ru(II) polypyridines. "
Follow the seminar on Zoom: https://uu-se.zoom.us/j/69421644915
Previous news and events
On July 26-29, 2021, we co-organized the online International Solar Fuels Conference together with the Royal Society of Chemistry and CNRS Grenoble Alpes, ISF 2021. The conference was visited by some of the leading solar fuels researchers from around the world, and was also preceded by a satellite meeting for young researchers. To read more about the meeting, please visit the conference webpage: International Solar Fuels Conference 2021
SUNERGY Sweden Event
On 20th of April, 60+ participants joined the SUNERGY online event for Sweden. A dedicated meeting for Sweden that was organized in the run-up to the upcoming calls of the 2021-2022 Horizon Europe work programme and the SUNERGY – CO2 Value Europe joint brokerage event. The meeting was opened by Ann Magnuson, introducing the SUNERGY vision of enabling a fossil-free Europe through research and innovation. The event emphasized the important role that Sweden can play in this with its strong profile in renewable energy R&D. A summary of the event is found on the SUNERGY web page.
Watch all the presentations on YouTube:
Haining Tian doubly awarded in 2019 and 2020
Haining Tian was awarded the prestigious Göran Gustafsson Prize in 2020, and also was awarded Wallenberg Academy Fellow in Engineering and Technology 2019, for his work on catalysis and solar fuels.
Shedding new light on greener synthesis pathways
In October 2019, Sascha Ott, Eszter Borbas, Leif Hammarström and Jacinto Sá, received a 5-year grant of 35 million kronor from the Knut and Alice Wallenberg Foundation, for their interdisciplinary project "Unexplored Approaches to Organic Photoredox Catalysis”.
In this new research project, the groups will focus on finding new alternatives to several reactions that are widely used in the chemical industry at present. The project objective is to develop new synthesis pathways that generate less waste, or new synthetic routes that have not been practicable before.
CAP scientists in the TV news
At the CAP meeting in Umeå, March 4, 2019, CAP researchers were discussing future hydrogen technology. We also had the chance to test drive a fuel cell vehicle that runs on hydrogen gas. Swedish public service television filmed the event, which can be watched here: Vätgasbilar spås ha nyckelroll i framtiden
Over 400 delegates from Europe, and all over the world, discussed recent findings in natural and artificial photosynthesison June 25 - 28, 2018. To see what it was all about, go to the conference homepage: ePS1.org.
One of our prominent invited speakers, Junko Yano from Lawrence Berkeley National Laboratory, was interviewed in Swedish national radio. You can listen to the program here (mostly in Swedish).
The CAP workshop 2018
Our annual workshop was held in 2018 at Sigtunahöjden in Sigtuna, on April 26-27. Thanks for all the interesting presentations everyone, you made the workshop great!
Participants on the 2018 CAP workshop in Sigtuna, basking in the April sun.
An osprey was seen flying past the workshop venue.
Last updated November 12, 2021