Published April 1977 | Version v1
Journal article Metadata-only

Magnetic shielding studies on the alkali molecules Na2 and Cs2 by NMR

Creators

  • 1. Heidelberg Univ. (Germany, F.R.). Physikalisches Inst.

Description

NMR in the alkali molecules Na2 and Cs2 is performed by the atom-molecule exchange optical pumping method. The shielding differences sigma(Na) - sigma(Na2) = (29 +- 16) x 10-6 and sigma(Cs) - sigma(Cs2) = (221 +- 12) x 10-6 are obtained. The investigation of the contribution of the valence electron to the magnetic shielding is supported by a NMR experiment in free Cs+ ions, which yields the shielding difference sigma(Cs) - sigma(Cs+) = (14 +- 12) x 10-6. These measurements allow an estimation of the spin rotation interaction constant in these molecules. (orig.)

Abstract (German)

NMR-Messungen an den Alkali-Molekuelen Na2 und Cs2 werden mit Hilfe der Atom-Molekuelaustausch-Methode durch optisches Pumpen durchgefuehrt. Es ergeben sich Shielding-Differenzen von sigma(Na) - sigma(Na2) = (29 +- 16) x 10-6. Der Beitrag des Valenzelektrons zur Chemical-Shift wird durch ein NMR-Experiment an freien Cs+ Ionen untersucht und fuehrt zu einem Differenzwert von sigma(Cs) - sigma(Cs+) = (14 +- 12) x 10-6. Diese Messungen erlauben eine Abschaetzung fuer die Wechselwirkungskonstante der Spin-Rotation in diesen Molekuelen. (orig.)

Additional details

Identifiers

DOI
10.1007/bf01408608;

Publishing Information

Journal Title
Zeitschrift f�r Physik A: Atoms and Nuclei
Journal Volume
281
Journal Issue
1-2
Series
Z. Phys., A.
Journal Page Range
25-33
ISSN
0340-2193

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
8331274
Subject category
S74: ATOMIC AND MOLECULAR PHYSICS;
Descriptors DEI
CESIUM; CESIUM IONS; CESIUM 133; CHEMICAL SHIFT; GYROMAGNETIC RATIO; MOLECULES; NUCLEAR MAGNETIC RESONANCE; OPTICAL PUMPING; SODIUM; SODIUM 23
Descriptors DEC
ALKALI METALS; ATOMIC IONS; CESIUM ISOTOPES; CHARGED PARTICLES; ELEMENTS; INTERMEDIATE MASS NUCLEI; IONS; ISOTOPES; LIGHT NUCLEI; MAGNETIC RESONANCE; METALS; NUCLEI; ODD-EVEN NUCLEI; RESONANCE; SODIUM ISOTOPES; STABLE ISOTOPES

Optional Information

Notes
5 figs.; 44 refs.; Updated automatically by Metadata and Full-Text Enrichment Agent