Welcome to the Gessner Research Group

CONTACT                  Gessner Research Group

Inorganic Chemistry II
Ruhr-Universität Bochum
Universitätsstrasse 150
44801 Bochum

  • Bachelor-
  • Master- and
  • PhD-positions available
Prof. Viktoria Däschlein-Gessner



Latest News

May 2023

Angela's work on palladium catalysed dehalogenation under mild conditions, for example to remove PCBs from construction dust, has been published in Catalysis Science & Technology.

supported by:

ERC   AvH     FCI    Rockwood    Resolv     Umicore    DFG

News history

April 2023

Julians work in cooperation with the Nolan-Group from the Ghent university is published in the new issue of Chemistry - A European Journal.

March 2023

Swamy's article "Inverting the Electronic Structure of Diylidylgermylenes by Backbone Modification" is accepted in Chemistry - A European Journal

March 2023

Mike's et. al. article about Thiophosphinoyl-Tethered Ylide-Substituted Heavier Carbenes: Synthesis, Structures and Stabilities is published in Chemistry - A European Journal.

March 2023

Julian's new article 'Froma Fluorenyl Substituted Ylide-Functionalized Phosphine to a Neutral Phosphide via P-C Bond Cleavage' is published in ChemPlusChem.
doi: 10.1002/cplu.202200459

February 2023

Julian Löffler received the first poster price at the CaRLa winter school (Catalysis Research Laboratory at the University of Heidelberg and supported by BASF)

February 2023

Ilja Rodstein was awarded with this year's RESOLV-PhD-Prize.

January 2023

Viktoria Däschlein-Gessner is funded by the European Research Council within the context of a Consolidator Grant with 2 million euros. She was already funded with an ERC Starting Grant from 2016 to 2022.

More details @ RUB-News

January 2023

Our new publication in cooperation with the Gooßen-group "Computer-Driven Development of Ylide Functionalized Phosphines for Palladium-Catalyzed Hiyama-Couplings" is published in Angewandte Chemie Intl. Ed.

January 2023

Congratulations to Nicolas Kaiser and Henric Janning on the Wilke Prize 2022 as the best master’s and bachelor’s graduates from our faculty. That's an outstanding achievement!!!

December 2022

Our first publication in the SCIENCE Magazin is published. Congratulations to Mike and Felix!

M. Jörges, F. Krischer, V. H. Gessner,
Transition metal-free ketene formation from carbon monoxide through isolable ketenyl anions
Science, 2022, 378, 1331-1336; DOI: 10.1126/science.ade4563

Ketenes from ylides
Most chemical reactions that build complex molecules from carbon monoxide rely on transition metal catalysis. Jörges et al. found that carbon monoxide also reacts cleanly with potassium ylides by phosphine displacement. The resulting negatively charged ketenyl compounds could be isolated and crystallographically characterized, manifesting a bent structure poised for downstream reactivity at the carbon rather than oxygen site. This behavior was borne out in a variety of reactions of the anions with electrophiles to produce ketenes and their derivatives.

November 2022

Viktoria was awarded the Klung-Wilhelmy Science Prize 2022 for work in the field of ylid chemistry and the development of new catalysts. Further information:

November 2022

we welcome our new PhD student Sunita Mondal to the team

June 2022

New article "From Stable PH-Ylides to α-Carbanionic Phosphines as Ligands for Zwitterionic Catalysts" is published in Angewandte Chemie Intl. Ed.

June 2022

Our studies in collaboration with the Gooßen group on the use of our YPhos ligands in Suzuki couplings is now out in Advanced Synthesis & Catalysis. Congrats to Jens and Heidar!!!

March 2022

Sébastien's and Abir's new article
Ylide-Substituted Phosphines: A Platform of Strong Donor Ligands for Gold Catalysis and Palladium-Catalyzed Coupling Reactions
is published in Accounts of Chemical Research.

February 2022

Philipp's, Daniel's and Jens' new article about
Synthesis of sterically encumbered di- and triarylamines by palladium-catalysed C–N coupling reactions under mild reaction conditions
is accepted in Catal. Sci. Technol.

February 2022

Welcome Max!
Our new postdoc coming from the Ganchemong group in Taiwan.

February 2022

Tobias' and Felix' new article
Ylide-stabilized phosphenium cations: Impact of the substitution pattern on the coordination chemistry
is accepted in Chemistry - A European Journal
doi: 10.1002/chem.202104074

January 2022 - New Publication

Abir's new publication
Radiolabelling - Tritiation gets selective
is published in Nature Synthesis

December 2021 - Jens defends his PhD thesis

Congrats to Dr. Tappen, the 12th PhD student graduating in the group.
It was great to have you in the team. All the best for your future career.

November 2021

New cover picture in Chemistry - A European Journal
The icebreaker “RV Bond Activation”, which symbolizes our carbene complexes depicted by the constellation in the sky, is able to easily break P−H bonds via the carbene linkage.
DOI: 10.1002/chem.202103151

November 2021

The new Chemistry Open is out, and the cover is hot.
It shows the structure of a novel metallated ylide - the team were able to isolate this reactive and useful compound through smart molecular design!
DOI: 10.1002/open.202100187

July 2021 - Henning defends his PhD thesis

Birth of the 10th Dr. from the Gessner group. Congratulations to Henning Steinert for successfully defending his PhD this. This was an excellent performance.

July 2021 - Heidar defends his PhD thesis

Congratulations Dr. Darmandeh to a splendid performance. Good luck for your future career .

April 2021 - Tobias defends his PhD Thesis

Tobias Stalder defends succesfully his PhD thesis "Ylid-substituierte, niedervalente Hauptgruppenelementverbindungen"


March 2021 - Inside Cover Picture

Jens' new publication
'Towards the Rational Design of Ylide-Substituted Phosphines for Gold(I)-Catalysis: From Inactive to ppm-level Catalysis'
is highlighted in Chemical Science (Inside Cover picture).
DOI: 10.1039/D1SC00105A

February 2021 - New Publication

Jens' new publication
'Towards the Rational Design of Ylide-Substituted Phosphines for Gold(I)-Catalysis: From Inactive to ppm-level Catalysis'
is accepted in Chemical Science.
DOI: 10.1039/D1SC00105A

September 2020 - New Publication

Heidar's Article "Selective B(C6F5)3-Catalyzed Reactions of α-Diazoesters with Heterocycles and Alkenes"
is published in Chem. 2020, 6, 9, 2364. doi: 10.1016/j.chempr.2020.08.006

August 2020 - New Publication

Alex's new article "Cationic Phosphorus Compounds Based on a Bis(1-piperidinyl)-Substituted Carbodiphosphorane: Syntheses, Structures, and C sp3–H Activation"
is published in Organometallics.

July 2020 - New Publication

Thorsten's article "Efficient Pd‐Catalyzed Direct Coupling of Aryl Chlorides with Alkyllithium Reagents"
was published in Angewandte Chemie Intl. Ed.

July 2020 - New Publication

Abir's article "Phosphorus-Ylides: Powerful Substituents for the Stabilization of Reactive Main Group Compounds"
is published in Chemical Science. doi: 10.1039/D0SC03278F

June 2020 - New Publication

Alex article "A diamino-substituted carbodiphosphorane as strong C-donor and weak N-donor: isolation of monomeric trigonal-planar L·ZnCl2"
is published in Chemical Communications. doi: 10.1039/D0CC02496A

May 2020 - Great honor

Viktoria has been chosen as the recipient of the Organometallics’ 2020 Distinguished Author Award. This annual award is sponsored by the ACS Division of Organic Chemistry, the ACS Division of Inorganic Chemistry, and Organometallics and recognizes authors of exceptional articles published in Organometallics in the previous two calendar years that emphasize the importance of organometallic chemistry and have made a profound impact on the field. Congratulations to Viktoria and the whole team.
For more information, see: