Trial lecture
September 27th, 10:15 AM, Auditorium 3, Chemistry building
Trial lecture title:
"X-ray powder diffraction: theory and new developments"
Kreeringssammendrag/Conferral summary
Oppdagelsen av nye materialer er essensiell for å finne bedre alternativer til dagens industrielle standarder og for å øke vår forståelse av fortsatt dårlig forståtte fenomener. Et relativt nytt fokus innenfor uorganisk kjemi er syntese av materialer som inneholder to eller flere anioner, såkalte blandet anion forbindelser. I disse forbindelsene kan kombinasjonen av flere anioner gi opphav til interessante egenskaper og nye krystalstrukturer. Avhandlingen tar for seg syntesen og karakteriseringen av en rekke nye oksid klorider med lav-dimensjonale strukturer.
Main research findings
In the history of inorganic chemistry, researchers have primarily focused on controlling the properties of the materials by altering the cation lattice. However, recent advances in inorganic chemistry have been made by utilizing multiple anions to further influence the material's properties. The combination of two or more anions can also, in many cases, lead to the synthesis of compounds featuring novel crystal structures.
The main focus of the work performed during this PhD has been the synthesis and characterization of novel oxide chlorides with low-dimensional crystal structures. The thesis includes a wide variety of different synthesis approaches to target low-dimensional crystal structures, with the primary approach being the combination of a p-block element containing a stereochemically active lone pair and mixed anions. Research within this topic is important, as low-dimensional materials show promise in a wide range of different applications owing to their electronic, optical, and magnetic properties. This work resulted in the discovery of six novel oxide chlorides, five of which featured novel crystal structures.
Candidate contact information
LinkedIn: https://www.linkedin.com/in/johnny-sannes-88a4b72b6/
Adjudication committee
Professor Thomas Schleid
Institute of Inorganic Chemistry, University of Stuffgart, Germany
Professor Sven Lidin
Centre of Analysis and Synthesis, Lund University, Sweden
Professor Ute Krengel
Department of Chemistry, University of Oslo, Norway
Supervisors
Førsteamanuensis Björn Martin Valldor
Department of Chemistry, University of Oslo, Norway
Professor Helmer Fjellvåg
Department of Chemistry, University of Oslo, Norway
Chair of defence
Professor Harald Walderhaug
Department of Chemistry, University of Oslo, Norway