Journal Article

FZJ-2014-01748

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png C 60 3- versus C 60 4- /C 60 2- - Synthesis and Characterization of Five Salts Containing Discrete Fullerene Anions

Boeddinghaus, M. B. (Corresponding author) ; Klein, W. ; Wahl, B. ; Jakes, P.FZJ* ; Eichel, R.-A.FZJ* ; Fässler, T. F.

2014
Wiley-VCH Weinheim

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Please use a persistent id in citations: doi:10.1002/zaac.201300607

Abstract: Five new compounds, [Rb(18crown-6)]3[C60] (1), [Rb(18crown-6)]6[C60]2(C3H7NO)2(C4H8O)2 (2), [Rb(benzo18crown-6)]6[C60]2(C2H8N2)5 (3), [Cs(benzo18crown-6)]3C60(C2H8N2)2 (4), and [Cs3(benzo18crown-6)5]C60(C2H8N2)(4.5+x) (5) were synthesized and characterized by single-crystal X-ray structure determination. All compounds contain discrete C60 anions, which are ordered in 1, 2, and 4, where direct cation-anion contacts occur. The unit cells of 1 and 2 contain two independent fullerides, which coordinate to the rubidium atoms either of two or of four [Rb(18crown-6)] units. Owing to the presence of differently coordinated fullerene units in compounds 1 and 2, a possible disproportionation of C603– into C602– and C604– anions is discussed. In 3 and 4 the C60 anions are coordinated by three Rb and Cs atoms, respectively. In all compounds the average charge of the anion is –3. Magnetic data reveal a doublet spin state for 3. The EPR spectra are discussed for compounds 3 and 5. The role of a dynamic Jahn-Teller distortion is discussed, and we report the first IR spectroscopic data of fullerene trianions, which have been obtained in solution.

Note: Bitte POF III ergänzen. Vielen Dank.Early View, Keywords: Crystal structure determination; Fullerenes; Jahn-Teller effect; Magnetic properties; Polyanions

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Contributing Institute(s):

1. Grundlagen der Elektrochemie (IEK-9)

Research Program(s):

1. 123 - Fuel Cells (POF2-123) (POF2-123)
2. 152 - Renewable Energies (POF2-152) (POF2-152)

Appears in the scientific report 2014

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Database coverage:
Current Contents - Social and Behavioral Sciences ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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