207Pb NMR in minium, Pb3O4: Evidence for the [Pb2]4+ ion andpossible relativistic effects in the Pb-Pb bond

Journal Article · Sun Jul 18 04:00:00 EDT 1999 · Solid State Nuclear Magnetic Resonance

DOI:https://doi.org/10.1016/S0926-2040(99)00038-7· OSTI ID:861337

Gabuda, S P; Kozlova, S G; Terskikh, V V; Dybowski, C; Neue, G; Perry, D L

Solid Pb3O4 has been studied with 207Pb nuclear magnetic resonance (NMR) spectroscopy. The 207Pb NMR chemical-shift tensor of the Pb2+ site has principal values of delta 11=1980+-5 ppm, delta 22=1540+-5ppm, and delta 33=-1108+-10 ppm; delta iso=804+-10 ppm. The chemical-shift tensor of the Pb4+ site is axial, with principal values delta bar bar=-1009+-3 ppm and delta perpendicular=1132+-3 ppm; delta iso=-1091+-3ppm. The Pb4+ Pb2+ scalar coupling constant JPb Pb=2.3+-0.1 kHz. The main contribution to the Pb2+ chemical-shift anisotropy is proposed to arise from an exchange interaction in the Pb2+ Pb2+ pairs, conventionally regarded as molecular [Pb2]4+ ions.

• Research Organization: OLLABORATION - Institute of InorganicChemistry, Novosibirsk 630090, Russian Federation; Boreskov Institute ofCatalysis, Novosibirsk 630090, Russian Federation; Department ofChemistry and Biochemis
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-05CH11231
• OSTI ID: 861337
• Report Number(s): LBNL--46492; doi:10.1016/S0926-2040(99)00038-7
• Journal Information: Solid State Nuclear Magnetic Resonance, Journal Name: Solid State Nuclear Magnetic Resonance Journal Issue: 2 Vol. 15; ISSN SSNRE4; ISSN 0926-2040
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANISOTROPY
CHEMICAL SHIFT
COUPLING CONSTANTS
EXCHANGE INTERACTIONS
NUCLEAR MAGNETIC RESONANCE
SCALARS
SPECTROSCOPY