AG ESR Spectroscopy

My group uses Electron Paramagnetic Resonance (EPR) also known as Electron Spin Resonance (ESR) Spectroscopy to investigate the structure of novel materials and proteins. Our work is unashamedly collaborative and brings together biologists, chemists, materials scientists and physicists.


Room Temperature MASERs

The MASER (Microwave Amplification by Stimulated Emission of Radiation) is the forerunner of the Laser, but is less well know and developed due to technical challenges. Recently, together with colleagues at Imperial College London, we have been developing a MASER based on the lowest excited triplet state of pentacene in p-terphenyl (Salvadori et al, Scientific Reports 2017, Breeze et al, Quantum Information 2017) and NV- centres in diamond that works at room temperature (Breeze et al, Nature 2018).

Structural Biology

Combining X-ray crystallography, molecular dynamics and nitroxide spin-labeling EPR spectroscopy to obtain and verify structures of proteins in solution (Ilangovan et al, Cell 2017, Bagneris et al Nature Communications 2013, Webster et al Nucleic Acids Research 2012, Phan et al Nature, 2011, Grohmann et al Journal of the American Chemical Society 2010).


Team Members


Prof. Dr. Christopher W. M. Kay

Lehrstuhlinhaber und Leiter der AG ESR

Geb. B2 2 Raum 0.24
Tel:  +49 681 302 2213
Fax: +49 681 302  4759




Petra Theobald

Geb. B2 2 Raum 0.22
Tel:  +49 681 302 2473
Fax: +49 681 302 4759


Scientific Team Members

Dr. Yi Dong

Wissenschaftliche Mitarbeiterin

Geb. B2 2 Raum 0.26
Tel:  +49 681 302 64310



Dina Klippert


Geb. B2 2 Raum 0.26
Tel:  +49 681 302 64310


Stefan Ruloff, M.Sc.


Geb. B2 2 Raum 0.21
Tel:  +49 681 302 64859


Dr. Daniel Rauber

Wissenschaftlicher Mitarbeiter (Postdoc)

Geb. B2 2 Raum 0.25
Tel:  +49 681 302 64253


Clemens Matt, M.Sc.


Geb. B2 2 Raum 0.21
Tel:  +49 681 302 3586


Student Team Members

Jonas Bach

Chemie (Bachelor-Studiengang)

Betreuung der Lehrveranstaltung: PC01, PC02, An02


Lukas Schneider

Chemie (Bachelor-Studiengang)

Betreuung der Lehrveranstaltung: PC02, PCW


David Schaaf

Chemie (Bachelor-Studiengang)

Betreuung und Koordination der Lehrveranstaltungen: PC01, PC03, PCG, PCWI, PCWII,  Probestudium

Technik Support


Lukas Schank

Chemie (Bachelor-Studiengang)

Betreuung der Lehrveranstaltung: PC02

Server Administration


Daniel Schroeder

Chemie (Bachelor-Studiengang)

Betreuung der Lehrveranstaltung: PC02


Haakon Wiedemann, B.Sc.

Chemie (Master-Studiengang)

Betreuung der Lehrveranstaltung: PCG, PC01





We are always looking for committed employees for various projects. HiWi, Bachelor, Master, Diploma, PhD and advanced works for chemists and physicists. We are also looking for students for "wissenschaftliche Arbeit" in chemistry eduction