Single-Crystalline cooperite (PtS): Crystal-Chemical characterization, ESR spectroscopy, and 195Pt NMR spectroscopy

Autor:	Willis Forsling, Alexander V. Ivanov, O. N. Antsutkin, V. I. Rozhdestvina, M. A. Zaremba
Rok vydání:	2008
Předmět:	Chemistry Analytical chemistry chemistry.chemical_element Crystal growth General Chemistry Nuclear magnetic resonance spectroscopy Crystal structure Condensed Matter Physics Crystal NMR spectra database Crystallography X-ray crystallography General Materials Science Spectroscopy Platinum
Zdroj:	Crystallography Reports. 53:391-397
ISSN:	1562-689X 1063-7745
Popis:	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 195Pt 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: δxx = −5920 ppm, δyy = −3734 ppm, δzz = +4023 ppm, and δiso = −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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::584fb1cce79d87119c47c61094123246 https://doi.org/10.1134/s106377450803005x Zobrazit plný text záznamu Plný text ve formátu PDF