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Single-crystalline cooperite (PtS): crystal-chemical characterization, ESR spectroscopy, and Pt-195 NMR spectroscopy
Russian Adademy of Sciences.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.
Russian Adademy of Sciences.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.ORCID iD: 0000-0003-1067-7990
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2008 (English)In: Crystallography reports (Print), ISSN 1063-7745, E-ISSN 1562-689X, Vol. 53, no 3, p. 391-397Article in journal (Refereed) Published
Abstract [en]

Single-crystalline cooperite (PtS) with a nearly stoichiometric composition was characterized in detail by X-ray diffraction, electron-probe X-ray microanalysis, and high-resolution scanning electron microscopy. For the first time it was demonstrated that Pt-195 static and MAS NMR spectroscopy can be used for studying natural platinum minerals. The 195pt chemical-shift tensor of cooperite was found to be consistent with the axial symmetry and is characterized by the following principal values: delta(xx) = -5920 ppm, delta(yy) = -3734 ppm, delta(zz) = +4023 ppm, and delta(iso) = -1850 ppm. According to the ESR data, the samples of cooperite contain copper(II), which is adsorbed on the surface during the layer-by-layer crystal growth and is not involved in the crystal lattice.

Place, publisher, year, edition, pages
2008. Vol. 53, no 3, p. 391-397
National Category
Physical Chemistry
Research subject
Chemistry of Interfaces
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URN: urn:nbn:se:ltu:diva-10988DOI: 10.1134/S106377450803005XISI: 000256233900005Scopus ID: 2-s2.0-46749136485Local ID: 9e284c30-4697-11dd-a00e-000ea68e967bOAI: oai:DiVA.org:ltu-10988DiVA, id: diva2:983937
Note
Validerad; 2008; 20080630 (bajo)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Ivanov, AlexanderAntzutkin, OlegForsling, Willis

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