25-30 August 2019
Henry Ford Building
Europe/Berlin timezone

An experimental access to the microwave saturation factor at 9.4 Tesla in liquid state

Not scheduled
Harnack House and Henry Ford Building

Harnack House and Henry Ford Building

Board: 82
Poster Posters


Mr Danhua Dai


Liquid state (Overhauser) Dynamic Nuclear Polarization (DNP) experiments have been performed at high magnetic fields (9.4 T) on aqueous solution of 14N-TEMPOL nitroxide radicals. To determine the saturation factor of the electron spin, the 1H paramagnetic shift as a function of the microwave power was measured as previously reported [1]. We could show that the paramagnetic shift depends on the 14N-TEMPOL radical concentration. The suppressed paramagnetic shift can be determined by measuring the NMR line shift as function of the applied microwave power, which allows a quantitative determination of the DNP saturation factor.

[1] P. Neugebauer, J. G. Krummenacker, V. P. Denysenkov, G. Parigi, C. Luchinat and T. F. Prisner, Phys. Chem. Chem. Phys., 15, 6049 (2013).

Primary authors

Mr Danhua Dai Dr Vasyl Denysenkov Prof. Thomas F. Prisner (Institute of Physical and Theoretical Chemistry and Center for Biomolecular Resonance)

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