Konstantin Ivanov Intercontinental Magnetic Resonance Seminar

Konstantin Ivanov intercontinental magnetic resonance seminar series started on April 8, 2020. It organises seminars on a range of topics in magnetic resonance covering NMR, EPR, hyperpolarisation, colour centres and optical pumping, and ZULF NMR. The emphasis of the talks are on both methods and applications and a perspective on the future of the field. The speakers include a wide range of scientists ranging from PhD students to post-doctoral fellows, to senior scientists.

Upcoming Talks:

• June 19, 2026, Alexander Schnegg, MPI CEC, Mülheim, Germany, " Large zero-field splittings as probes for the electronic structure in triplet states of transition metals and main-group elements", EPR provides insights into the electronic structure of paramagnetic transition metal and main group complexes via their spin Hamilton parameters. Heavier elements exhibit significant spin-orbit coupling (SOC), which leads to pronounced magnetic anisotropies that make characterization with conventional EPR difficult. This is particularly true for integer spin states. For investigations in high-spin states with very large magnetic anisotropies, we have developed a magneto-optical THz-EPR spectrometer equipped with a 12-T magnet and operating in a spectroscopic range from 100 GHz (3 cm-1) to 180 THz (6000 cm-1). In the spectrometer light excitation in the visible range allows for in situ characterization of highly reactive, light-generated complexes. Here we report on the determination of the triplet g- and ZFS values of a three-coordinate Fe(0) complex. We outline how the anisotropy of the ZFS- and g-tensors reflect the degree of ground-state degeneracy in low coordinate complexes. Further magneto structural correlations are established for the triplet ground states of exchange-coupled dicopper complexes, which are relevant to the activation of molecular oxygen. In addition, we demonstrate the determination of the magnetic anisotropies of stable and light-generated subvalent main group compounds with oxidation states below their normal group oxidation state.    

• June 26, 2026, Raphaële Clément , UCSB, USA