Chemical and Biological Systems Simulation Laboratory

BEETHOVEN 2

Anionic Carbenes and Borylanions: Tuning the properties of ruthenium metal complexes in olefin metathesis

Project period: 2018-2020

Funding: NCN Beethoven 2, UMO-2016/23/G/ST5/04297

PI: dr hab. Bartosz Trzaskowski

The main goal of this research project is a systematic study of selected, non-standard carbenes and their potential use in homogenous chemical catalysts directed toward better understanding of the fundamental aspects of their action. The main part of this project consists of the design, modelling, synthesis and analysis of new anionic N-heterocyclic carbene derivatives and borylanions, which can be used as transition metal complexing agents to produce new catalysts. We will focus on ruthenium-based complexes as candidates for efficient metathesis reaction but also explore synthetic routes towards complexes of other transition metals. This task will be carried out in an interdisciplinary, multinational team consisting of scientists, experts in carbene synthesis, experimental ruthenium-catalyst preparation and analysis and rational design and modeling of transition metal complexes. The results of this project will allow for an accurate characterization of a series of new carbenes and complexes and allow to develop a general methodology, which will be used in the future to design new, better catalysts.

Selected publications

P. Martinez, B. Trzaskowski, "Structural and Electronic Properties of Boranes Containing Boron-Chalcogen Multiple Bonds and Stabilized by Amido Imidazoline-2-imine Ligands", Chem. Eur. J., 28, e202103997 (2022). doi: 10.1002/chem.202103997

L. Denker, B. Trzaskowski, R. Frank, "“Give Me Five” - An Amino Im-idazoline-2-imine Ligand Stabilises First Neutral Five-membered Cyclic Triel(I) Carbenoides", Chem. Commun., 57, 2816-2819 (2021). doi: 10.1039/D1CC00010A

H. Dolati, L. Denker, B. Trzaskowski, R. Frank, "Superseding β-Diketiminato Ligands: An Amido Imidazoline-2-Imine Ligand Stabilizes the Exhaustive Series of B=X Boranes (X = O, S, Se, Te)", Angew. Chem. Int. Ed., 60, 4633-4639 (2021). doi: 10.1002/anie.202015553