1H NMR studies of molecular dynamics in polycrystalline catecholamines.
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.
Grabias
T
T
Institute of Molecular Physics PAS, Poznan, Poland.
Piślewski
N
N
Pośpieszyński
P
P
D002395:Catecholamines / Q000737:chemistry*; D003460:Crystallization; D006859:Hydrogen / Q000737:chemistry; D007545:Isoproterenol / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D015394:Molecular Structure; D010656:Phenylephrine / Q000737:chemistry; D010665:Phenylpropanolamine / Q000737:chemistry; D013816:Thermodynamics
D002395:Catecholamines; D010656:Phenylephrine; D010665:Phenylpropanolamine; D006859:Hydrogen; D007545:Isoproterenol