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Highly Stable [C₆₀AuC₆₀]^+/- Dumbbells.

ABSTRACT: Ionic complexes between gold and C₆₀ have been observed for the first time. Cations and anions of the type [Au(C₆₀)₂]^+/- are shown to have particular stability. Calculations suggest that these ions adopt a C₆₀-Au-C₆₀ sandwich-like (dumbbell) structure, which is reminiscent of [XAuX]^+/- ions previously observed for much smaller ligands. The [Au(C₆₀)₂]^+/- ions can be regarded as Au(I) complexes, regardless of whether the net charge is positive or negative, but in both cases, the charge transfer between the Au and C₆₀ is incomplete, most likely because of a covalent contribution to the Au-C₆₀ binding. The C₆₀-Au-C₆₀ dumbbell structure represents a new architecture in fullerene chemistry that might be replicable in synthetic nanostructures.

SUBMITTER: Goulart M

PROVIDER: S-EPMC5964450 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature

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Highly Stable [C60AuC60]+/- Dumbbells.

Goulart Marcelo M Kuhn Martin M Martini Paul P Chen Lei L Hagelberg Frank F Kaiser Alexander A Scheier Paul P Ellis Andrew M AM

The journal of physical chemistry letters 20180508 10

Ionic complexes between gold and C60 have been observed for the first time. Cations and anions of the type [Au(C60)2]+/- are shown to have particular stability. Calculations suggest that these ions adopt a C60-Au-C60 sandwich-like (dumbbell) structure, which is reminiscent of [XAuX]+/- ions previously observed for much smaller ligands. The [Au(C60)2]+/- ions can be regarded as Au(I) comp ...[more]

PMID: 29722981

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