X-RAY-ABSORPTION NEAR-EDGE STRUCTURE (XANES) SPECTROSCOPY OF FULLERENES - INNER-SHELL EXCITONIC EFFECTS IN FULLERENES AND THE XANES SPECTRUM OF A HIGHER FULLERENE C-76

Authors
SEKI K MITSUMOTO R ARAKI T ITO E OUCHI Y KIKUCHI K ACHIBA Y
Citation
K. Seki et al., X-RAY-ABSORPTION NEAR-EDGE STRUCTURE (XANES) SPECTROSCOPY OF FULLERENES - INNER-SHELL EXCITONIC EFFECTS IN FULLERENES AND THE XANES SPECTRUM OF A HIGHER FULLERENE C-76, Synthetic metals, 64(2-3), 1994, pp. 353-357
Citations number
40
Categorie Soggetti
Physics, Condensed Matter","Metallurgy & Mining
Journal title
Synthetic metals → ACNP
ISSN journal
03796779
Volume
64
Issue
2-3
Year of publication
1994
Pages
353 - 357
Database
ISI
SICI code
0379-6779(1994)64:2-3<353:XNS(SO>2.0.ZU;2-G
Abstract
X-ray absorption near-edge structure (XANES) spectra of fullerenes C60 , C70 and C76 were measured at the K-edge of carbon. Comparison of XAN ES and inverse photoemission spectra of C and C70 revealed that the co re excitonic effect is small, indicating the usefulness of XANES spect roscopy for probing the density of unoccupied states (DOUS) of fullere nes. The variation of the magnitude of the core excitonic effect among various delocalized pi-electron systems is discussed in relation to t he dimensionality and size of the systems. The observed XANES spectra were compared with theoretically calculated DOUS.