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: Jean-François Boily, Michael Holmboe, C. André Ohlin, Andrey Shchukarev, and Staffan Sjöberg.
A collaboration between JF Boily and Glenn Waychunas (LBNL). Paper is here!
A collaboration with JF Boily and M Zhu (U of Wyoming), X. Feng (Huazhong Agricultural University), Y. Hu (Canadian Light Source), G. Waychunas (LBNL), J. Kubicki (University of Texas) and X. Wang (U of Wyoming).
Find the paper here
Authored by Merve Yesilbas, Michael Holmboe and JF Boily. We identified vibration spectral signatures of clays with 0, 1 and 2 hydration layers.
You can find the paper here
PNacPNacE: (E = Ga, In, Tl) – monomeric group 13 metal(I) heterocycles stabilized by a sterically demanding bis(iminophosphoranyl)methanide
Dalton Trans., 2017, 46, 16872-16877.
Christian P. Sindlinger, Samuel R. Lawrence, Shravan Acharya, C. André Ohlin, Andreas Stasch
Abstract: The salt metathesis reaction of the sterically demanding bis(iminophosphoranyl)methanide alkali metal complexes LM (L – = HC(Ph 2 P=NDip) 2- , Dip = 2,6- i Pr 2 C 6 H 3 ; M = Li, Na, K) with “GaI”, InBr or TlBr afforded the monomeric group 13 metal(I) complexes LE:, E = Ga (1), In (2) and Tl (3), and small quantities of LGaI 2 4 in case of Ga, respectively. The molecular structures of LE: 1-3 from X-ray single crystal diffraction show them to contain puckered six-membered rings with N,N’-chelating methanide ligands and two-coordinated metal(I) centres. Reduction reactions of LAlI 2 5, prepared by iodination of LAlMe 2 , were not successful and no aluminium(I) congener could be prepared so far. DFT studies on LE:, E = Al–Tl, were carried out and support the formulation as an anionic, N,N’-chelating methanide ligand coordinating to group 13 metal(I) cations. The HOMOs of the molecules for E = Al-In show a dominant contribution from a metal-based lone pair that is high in s-character. See http://pubs.rsc.org/en/content/articlelanding/2017/dt/c7dt04048b#!divAbstract
We thank the Kempe Foundation for supporting a new venture in the world of isotope geochemistry in the Boily laboratory. More details are to come in 2018.
New paper by M. Lucas (former postdoc) and J.-F. Boily on the local (micron-scale) electrochemical response of inorganic ions at hematite surfaces. Link to article here!
Last week Michael Holmboe presented his work on MD simulations of hydrated clays for the nuclear waste community working with natural and engineered clay barriers, at the first day plenary session of the Clay conference in Davos, with over 400 participants.
Dr Magdalena Pascual-Borràs has joined the Ohlin group as a postdoc on a Kempe foundation fellowship. She will be looking at the reactivity of discrete metal oxide clusters using experimental and computational techniques.
Paper (Link) by JF Boily in collaboration with the group of Khalil Hanna at “École Nationale Supérieure de Chimie de Rennes” (France).
Dr Rupali Sharma (Ohlin group) has been awarded a PhD by Monash University for her work on the solution chemistry of metal oxides. We wish her all the best in her future endeavours!