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Published in:
Synthesis and Molecular Structures of Endohedral Fullerenes Read chapter Read first chapter

2017 | OriginalPaper | Chapter

9. Ion Radicals of Endohedral Metallofullerenes Studied by EPR Spectroscopy

Author : Alexey A. Popov

Published in: Endohedral Fullerenes: Electron Transfer and Spin

Publisher: Springer International Publishing

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Abstract

This chapter describes EPR spectroscopic studies of the charged states of dimetallofullerenes, carbide clusterfullerenes, nitride clusterfullerenes, and their derivatives, as well as oxide clusterfullerene Sc4O2@C80 and cyano-clusterfullerene Sc3CN@C80. Spin density distribution in the cation and anion radicals resemble HOMO and LUMO of the neutral molecules. Therefore, EPR spectroscopic studies of the ion radicals of endohedral metallofullerenes provide important information on the electronic structure of pristine molecule. The size of the metal-based hyperfine coupling constants in the ion radicals reveals the extent at which the spin density is localized on the endohedral species or on the fullerene cage. Besides, EPR spectra of ion radicals can provide information on the internal dynamics of the cluster. In particular, freezing rotation of the Sc3N cluster in the derivative of Sc3N@C80 is revealed via EPR spectra of their anion radicals.

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previous chapter Electron Spin Resonance of Lanthanide EMFs
next chapter Nuclear Magnetic Resonance Spectroscopy of Endohedral Metallofullerenes with Paramagnetic Metal Ions: Structure Elucidation and Magnetic Anisotropy
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Metadata
Title
Ion Radicals of Endohedral Metallofullerenes Studied by EPR Spectroscopy
Author
Alexey A. Popov
Copyright Year
2017
Book
Endohedral Fullerenes: Electron Transfer and Spin

Print ISBN: 978-3-319-47047-4

Electronic ISBN: 978-3-319-47049-8

Copyright Year: 2017

DOI
https://doi.org/10.1007/978-3-319-47049-8_9

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