DEUTERON NMR-SPECTRA OF ND4 TUNNELING AT LOW-FREQUENCIES IN (ND4)(2)SNBR6

: LALOWICZ ZT, SERAFIN R, PUNKKINEN M, VUORIMAKI AH, YLINEN EE

Publisher: VERLAG Z NATURFORSCH

: 1995

Zeitschrift fur Naturforschung a

ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES

: Z NATURFORSCH A

: 50

: 4-5

: 373

: 380

: 8

: 0932-0784

Deuteron NMR spectra of slowly tunneling ND4+ ions are analysed. Spectra are calculated as functions of the tunneling parameters which are the tunneling frequencies about the symmetry axes C-2 and C-3 of the tetrahedral ion. The structure and splittings within the ground torsional level (GTL) are obtained by fitting the spectra of(ND4)(2)SnBr6. Comparison with the GTL structure obtained before for NH4+ in the same compound gives the isotope reduction factor of the tunneling frequency about 200.

Physical sciences