If chemistry is the central science, then geochemistry is the central science as applied to understanding the natural world around us.
Geochemists seek to answer questions relating to the evolution of life on Earth and how metalloenzymes may have evolved, the chemistry of the oceans and how they are affected by global warming, the interplay between flora, fauna and the environment in chemical terms, how pollutants interact with soils and minerals, and how radioactive waste can be securely stored for millennia. We do this by connecting the very big — mountains — with the very small — atoms and molecules, and the very fast — fundamental reactions — with the often very slow — weathering
If you share our passion for understanding and explaining how the world works — join us! To find out about opportunities in our laboratory, contact one of the group leaders: Erik Björn, Jean-François Boily, Michael Holmboe, C. André Ohlin, Andrey Shchukarev, and Staffan Sjöberg.
By M. Yesilbas, M. Holmboe and JF Boily
The fifth paper of Merve Yesilbas‘ 2018 Ph.D. thesis online here: http://dx.doi.org/10.1039/C8EN01156G
Dr Hussein Kanbar has joined the group of A/Prof. Michael Holmboe and will be working on the molecular mechanisms behind the immobilization and preservation of sedimentary and ancient DNA (aDNA) by clay minerals.
A paper by Marie Lucas, Merve Yesilbas, Andrey Shchukarev and Jean-François Boily
“Protonation and water exchange kinetics in sandwich polyoxometalates”
in Dalton Transactions, 2018, 47, 13602-13607. Link.
C. André Ohlin, Magda Pascual-Borràs
Abstract: Density functional theory is used to explore the locus and consequences of protonation in [Zn4(H2O)2(PW9O34)2]10− . The results are used to explain recent observations regarding the contrasting pH effects on the water-ligand exchange in [Mn4(H2O)2(P2W15O56)2]16− and [Co4(H2O)2(P2W15O56)2]16− , and the general effect of protonation on solvent exchange in metal oxides is discussed.
Many of us in Molecular Geochemistry participated to the Gaussian
workshop at HPC2N on May 14-15!
PECA collaboration with JF Boily and Thomas Wågberg (Physics, Umeå University),
with lead author Alagappan Annamalai. Paper here
Merve Yesilbas defended her Ph.D. thesis on April 13 th.
from left to right: Staffan Sjöberg, Jan Pettersson (Gothenburg University), JF Boily, Merve Yesilbas, Grégory Lefèvre (CNRS-Paris)
Mark Ramabaran has joined the Ohlin group as a PhD student. He will be looking at the solution chemistry of polyoxometalates and their use as models for reactions on extended metal oxide surfaces.
Merve nailed her Ph.D. Thesis “Thin Water and Films on Minerals: A Molecular Level Study” on March 23rd.
She will defend her thesis on April 13th at Umeå University (info here).
Opponent: Grégory Lefèvre (Chime ParisTech)
Evaluation Committee: Stina Jansson (Chemistry, UmU), Jan Pettersson (University of Gothenburg), Alexandr Talyzin (Physics, UmU)