1998 – Parthasarathy – Natural fullerenes in shungite

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Papier scientifique en anglais

Occurrence of natural fullerenes in low grade shungite from Karelia, Russia
G. Parthasarathy, R. Srinivasan, M. Vairamani K. Rravikumarn A.C. Kunwar
Geochimica et Cosmochimica Acta, vol. 62, no. 21/22, p. 3541–3544, 1998

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UGS : sciPAR98 Catégories : ,

Description

We report on the occurrence of fullerenes in Proterozoic shungite (~2 Ga) from the shungite mine, Kondopoga, Karelia, Russia (62.12°N 34.17°E). The presence of fullerenes has been confirmed by mass spectrometry, with peaks at 360 and 720 amu ( atomic mass unit), powder X-ray diffraction showing ten diffraction peaks corresponding to the fullerite structure with a = 1.4201(5) nm, and 13C nuclear magnetic resonance (NMR) spectroscopic studies, showing a peak at 143.2 ppm. In the Kondopoga shungite mine, fullerenes occur in silty shales that have experienced greenshist facies metamorphism.

Copyright © 1998 Elsevier Science Ltd

 

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Auteurs

G. Parthasarathy, R. Srinivasan, M. Vairamani K. Rravikumarn A.C. Kunwar

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PDF

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