Published March 15, 1981 | Version v1
Journal article Metadata-only

NH2 dynamics in the nucleic acid bases

Creators

  • 1. University of the Witwatersrand, Johannesburg (South Africa). Dept. of Physics

Description

Rotating-frame proton magnetic relaxation times have been measured on powder samples of adenine, guanine and cytosine at temperatures up to 570 K. Evidence for NH2 group C2-axis reorientation has been obtained and the activation energies have been determined. Molecular orbital calculations confirm that the activation energy for NH2 reorientation is significantly lower for guanine than for adenine or cytosine. (orig.)

Additional details

Publishing Information

Journal Title
Chem. Phys. Lett.
Journal Volume
78
Journal Issue
3
Series
Chem. Phys. Lett.
Journal Page Range
592-595
ISSN
0009-2614

INIS

Country of Publication
Netherlands
Country of Input or Organization
Netherlands
INIS RN
12630381
Subject category
S74: ATOMIC AND MOLECULAR PHYSICS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
ADENINES; BOND ANGLE; BOND LENGTHS; CORRELATIONS; CYTOSINE; ELECTRON DENSITY; EXPERIMENTAL DATA; GUANINE; NITROGEN HYDRIDES; NMR SPECTRA; NUCLEIC ACIDS; RADICALS; SPIN-LATTICE RELAXATION; TEMPERATURE DEPENDENCE
Descriptors DEC
AMINES; AZINES; DATA; HETEROCYCLIC COMPOUNDS; HYDRIDES; HYDROGEN COMPOUNDS; HYDROXY COMPOUNDS; INFORMATION; NITROGEN COMPOUNDS; NUMERICAL DATA; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; ORGANIC OXYGEN COMPOUNDS; PURINES; PYRIMIDINES; RELAXATION; SPECTRA