Proton relaxation studies of 17α hydroxy- and 21 hydroxy- progesterones by 1H NMR
Falinska K.1, Hołderna-Natkaniec K.2,3, Jurga K.2, Medycki W.1, Szyczewski A.2
- 1Institute of Molecular Physics, Polish Academy of Sciences, Poznań, Poland
- 2Institute of Physics, Adam Mickiewicz University, Poznań, Poland
- 3Institute of Physics, Adam Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland
Applied Magnetic Resonance, 29 (2), pp.195-204, 2005
DOI::
Abstract:
Proton spin-lattice relaxation times T1 in 17α hydroxy- and 21 hydroxy-progesterones have been performed in the temperature range from 100 to 400 K at the frequencies of 30 and 90 MHz. The dynamic processes involving the methyl group reorientation about the threefold symmetry axis of the C-C bond are separated, and their activation parameters are determined. © Springer-Verlag 2005.
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