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Titolo:
Pb-207 NMR, powder diffraction, and Monte Carlo studies of PbxM1-x(NO3)(2)solid solutions
Autore:
Kye, YS; Herreros, B; Harbison, GS;
Indirizzi:
Univ Nebraska, Dept Chem, Lincoln, NE 68588 USA Univ Nebraska Lincoln NE USA 68588 aska, Dept Chem, Lincoln, NE 68588 USA
Titolo Testata:
JOURNAL OF PHYSICAL CHEMISTRY B
fascicolo: 25, volume: 105, anno: 2001,
pagine: 5892 - 5899
SICI:
1520-6106(20010628)105:25<5892:PNPDAM>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Soggetto:
NUCLEAR-MAGNETIC-RESONANCE; MAGIC ANGLE; NITRATES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
25
Recensione:
Indirizzi per estratti:
Indirizzo: Harbison, GS Univ Nebraska, Dept Chem, 508 Hamilton Hall, Lincoln, NE 68588 USA Univ Nebraska 508 Hamilton Hall Lincoln NE USA 68588 8588 USA
Citazione:
Y.S. Kye et al., "Pb-207 NMR, powder diffraction, and Monte Carlo studies of PbxM1-x(NO3)(2)solid solutions", J PHYS CH B, 105(25), 2001, pp. 5892-5899

Abstract

The solid solutions [Pb,Sr](NO3)(2) and [Pb,Ba](NO3)(2) show a multiplicity of Pb-207 NMR signals, arising from shifts of the Pb-207 resonances by less polarizable neighbors. The shifts have a unique anisotropic signature that allows tentative assignment of some of the signals. Monte Carlo simulation of the spectral intensities shows that the ions are slightly clustered in the crystal, which disagrees with:a conventional but specious analysis ofthe dependence of the unit cell volume on composition. The extent of the clustering is attributable to the differences between the van der Waals interaction energies of the ions.

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Documento generato il 01/04/20 alle ore 20:54:26