Thesis supervisor: Zoltán Németh
Location of studies (in Hungarian): HAS Wigner RCP Abbreviation of location of studies: Wigne
Description of the research topic:
Photoswitchable spin crossover molecules have been in the forefront of molecular magnetism research for decades. The excited state of one of the basic tridentate polypyridil Fe(II) complex, [Fe(terpy)2]2+, can be elongated with more than 10 orders of magnitudes in special environments and circumstances and can be made to be metastable. The PhD work will aim to investigate the intra and intermolecular roots of this phenomena combining laboratory-, synchrotron- and XFEL based X-ray spectroscopies, Mössbauer and optical spectroscopies, as well as quantum chemical calculations. We plan to redesign the tridentate ligand as well as to modify the matrix towards higher efficiency and higher working temperatures, as this is the prerequisite of any application.
In order to achieve the goals of the proposed research, the PhD student will extend our novel, unique experimental setup to access high resolution X-ray absorption and emission spectroscopies using a laboratory source, which can complement, even replace in some cases the heavily loaded and thus only occasionally accessible synchrotrons. Low intensity X-ray sources and inefficient spectrometers prevented high resolution X-ray spectroscopies to spread in local laboratories, thus synchrotrons became to be known inevitable to perform such measurements. However, the developments in both analyzers and detector technology in the recent years gave the opportunity to build an efficient high resolution tabletop spectrometer. The PhD student will also participate in experiments at international facilities (synchrotrons and XFELs), optical and Mössbauer spectroscopic studies as well as in theoretical modelling.
Required language skills: English (at least B2 level) Further requirements: The ideal candidate has an MSc in chemistry or related fields, is familiar with spectroscopic methods, fluent in English, and possess basic programming skills
Number of students who can be accepted: 2
Deadline for application: 2017-05-31
2024. IV. 17. ODT ülés Az ODT következő ülésére 2024. június 14-én, pénteken 10.00 órakor kerül sor a Semmelweis Egyetem Szenátusi termében (Bp. Üllői út 26. I. emelet).
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