1H NMR studies of molecular dynamics in polycrystalline catecholamines.

Autor: Grabias T; Institute of Molecular Physics PAS, Poznan, Poland., Piślewski N, Pośpieszyński P
Jazyk: angličtina
Zdroj: Solid state nuclear magnetic resonance [Solid State Nucl Magn Reson] 1996 Apr; Vol. 6 (2), pp. 135-9.
DOI: 10.1016/0926-2040(95)01222-2
Abstrakt: The proton dynamics in phenylephrine hydrochloride, isoprenaline hydrochloride and norephedrine hydrochloride have been monitored by measuring the temperature dependence of the 1H spin-lattice relaxation times. The results are interpreted as due to C3-hindered reorientation of the NH3 and CH3 groups. The activation parameters have been determined.
Databáze: MEDLINE