RESEARCH PROFILE
The research team focuses on mechanistic studies in inorganic and bioinorganic chemistry, especially in terms of the activation of small molecules such as NO, HNO, NAD+/NADH, and H2O2. Fast kinetic and rapid-scan techniques are employed to elucidate the nature of the underlying activation process, which in many cases are transition metal complexes. More recently, the group has developed an interest in the synthesis of mixed-valent metal ion-pair complexes with unexpected magnetic properties.
GROUP MEMBERS
Prof. dr hab. Rudi van Eldik, email: rudi.vaneldik@fau.de
dr hab. Anna Katafias, prof. UMK, email: katafias@umk.pl
dr Olga Impert, email: oimpert@umk.pl
mgr Marta Chrzanowska, email: mrta911@gmail.com
mgr Aniela Trocha, email: aniela.trocha@gmail.com
PROJECTS, GRANTS
Prof. Rudi van Eldik – NCN grant OPUS 19 “Mechanistic clarification of the interaction of nanoparticles and nanoscale coordination compounds at the interface of multiphase chemical and medicinal related processes”.
SELECTED PUBLICATIONS
D. Chatterjee, M. Chrzanowska, A. Katafias, M. Oszajca and R. van Eldik, RuIII(edta) complexes as molecular redox catalyst in chemical and electrochemical reduction of dioxygen and hydrogen peroxide: Inner-sphere versus outer-sphere mechanism, RSC Advances, 11, 21359–21366 (2021).
D. Ćoćić, B. Petrović, R. Puchta, M. Chrzanowska, A. Katafias and R. van Eldik, Investigation of water substitution at Ru(II) complexes by conceptual density function theory approach, J. Comput. Chem., 43, 1161–1175 (2022).
M. Chrzanowska, A. Katafias, R. van Eldik and D. Chatterjee, Oxidoreductase mimicking activity of Ru(edta) complexes in conversion of NAD coenzymes, Polyhedron, 221, 115872 (2022).
E. Soliman, M.M. Ibrahim, M.E. El-Khouly, I. El-Mehasseb, A. El-Motaleb M. Ramadan, M.E. Mahfouz, S.Y. Shaban and R. van Eldik, BSA Interaction, Molecular Docking, and Antibacterial Activity of Zinc(II) Complexes Containing the Sterically Demanding Biomimetic N3S2 Ligand: The Effect of Structure Flexibility, Molecules, 27, 3543 (2022).
O. Impert, A. Kozakiewicz-Piekarz, A. Katafias, M. Witwicki, U.K. Komarnicka, K. Kurpiewska and R. van Eldik, Mixed-valence outer-sphere RuII/RuIII ion-pair complexes. Synthesis, experimental, and theoretical studies, Polyhedron, 223, 115939 (2022).
J. Polaczek, G. Stochel, D. Ruiz-Molina, F.N. V ́azquez and R. van Eldik, Influence of modified nano-copper oxide particles on the reaction between nitrocobalamin and ascorbic acid, Polyhedron, 223, 115942 (2022).
M. Chrzanowska, A. Katafias, R. van Eldik and J. Conradie, Electronic effects on the mechanism of the NAD+ coenzyme reduction catalysed by a non-organometallic ruthenium(II) polypyridyl amine complex in the presence of formate, RSC Adv., 12, 21191–21202 (2022).
D. Chatterjee, M. Chrzanowska, A. Katafias, R. van Eldik, Reaction mechanisms relevant to the formation and utilization of [Ru(edta)(NO)] complexes in aqueous media, J. Inorg. Biochem., 225, 111595 (2021).
A. Trocha, O. Impert, A. Katafias and R. van Eldik, Mechanistic details of the catalytic degradation of methylene blue by hydrogen peroxide in basic solution. The unexpected innocence of percarbonate, Polyhedron, 210, 115507 (2021).
M. Oszajca, G. Drabik, M. Radoń, A. Franke, R. van Eldik and G. Stochel, Experimental and computational insight into the mechanism of NO binding to ferric microperoxidase. The likely role of tautomerization to account for the pH dependence, Inorg. Chem. Forum on Renaissance in NO Chemistry, 60, 15948-15967 (2021). This manuscript is featured on the cover of the 21st issue of Inorg. Chem.
D. Chatterjee, M. Oszajca, A. Katafias, R. van Eldik, Electrochemistry of Ru(edta) complexes relevant to small molecule transformations: Catalytic implications and challenges, Coord. Chem. Rev., 436, 213773 (2021).
J. Polaczek, H. Subedi, Ł. Orzeł, L. Lisboa, R.B. Cink, G. Stochel, N.E. Brasch and R. van Eldik, Mechanistic studies on the reaction between aquacobalamin and the HNO donor Piloty’s acid over a wide pH range in aqueous solution, Inorg. Chem., 60, 2964−2975 (2021). This manuscript is featured on the cover of the 5th issue of Inorg. Chem.
M. Chrzanowska, A. Katafias, R. van Eldik, Can a non-organometallic ruthenium(II) polypyridyl amine complex catalyze hydride transfer? Mechanistic insight from solution kinetics on the reduction of coenzyme NAD+ by formate, Inorg. Chem., 59, 14944-14953 (2020).
O. Impert, A. Kozakiewicz, G. Wrzeszcz, A. Katafias, A. Bieńko, R. van Eldik, A. Ozarowski, Characterization of the mixed-valence Ru(II)/Ru(III) ion-pair complex. Unexpected HF-EPR evidence for Ru(III)-Ru(III) dimer coupling, Inorg. Chem., 59, 8609−8619 (2020).
C.D. Hubbard, D. Chatterjee, M. Oszajca, J. Polaczek, O. Impert, M. Chrzanowska, A. Katafias, R. Puchta, R. van Eldik, Inorganic Reaction Mechanisms. A Personal Journey, Dalton Trans., 49, 4599-4659 (2020). Perspective Article for the 50th Anniversary of the RSC IRMDG for Dalton Transactions; This manuscript is featured on the cover of the 15th issue of Dalton Trans.!
M. Chrzanowska, A. Katafias, O. Impert, A. Kozakiewicz, A. Surdykowski, P. Brzozowska, A. Franke, A. Zahl, R. Puchta, R. van Eldik, Structure and reactivity of [RuII(terpy)(N^N)Cl]Cl complexes: consequences for biological applications, Dalton Trans., 46, 10264 – 10280 (2017).