A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
A hollow tetrahedral cage of hexadecagold dianion provides a robust backbone for a tuneable sub-nanometer oxidation and reduction agent via endohedral doping (2006)


Walter, M., & Häkkinen, H. (2006). A hollow tetrahedral cage of hexadecagold dianion provides a robust backbone for a tuneable sub-nanometer oxidation and reduction agent via endohedral doping. Physical Chemistry Chemical Physics, 8(46), 5407-5411. https://doi.org/10.1039/B612221C


JYU-tekijät tai -toimittajat


Julkaisun tiedot

Julkaisun kaikki tekijät tai toimittajatWalter, Michael; Häkkinen, Hannu

Lehti tai sarjaPhysical Chemistry Chemical Physics

ISSN1463-9076

eISSN1463-9084

Julkaisuvuosi2006

Volyymi8

Lehden numero46

Artikkelin sivunumerot5407-5411

KustantajaRoyal Society of Chemistry

JulkaisumaaBritannia

Julkaisun kielienglanti

DOIhttps://doi.org/10.1039/B612221C

Julkaisun avoin saatavuusEi avoin

Julkaisukanavan avoin saatavuus


Tiivistelmä

We show, via density functional theory calculations, that dianionic Au162− cluster has a stable, hollow, Td symmetric cage structure, stabilized by 18 delocalized valence electrons. The cage maintains its robust geometry, with a minor Jahn–Teller deformation, over several charge states (q = −1,0,+1), forming spin doublet, triplet and quadruplet states according to the Hund’s rules. Endohedral doping of the Au16 cage by Al or Si yields a geometrically robust, tuneable oxidation and reduction agent. Si@Au16 is a magic species with 20 delocalized electrons. We calculate a significant binding energy for the anionic Si@Au16/O2− complex and show that the adsorbed O2 is activated to a superoxo-species, a result which is at variance with the experimentally well-documented inertness of Au16− anion towards oxygen uptake.


YSO-asiasanatnanorakenteetfysikaalinen kemia


Liittyvät organisaatiot

JYU-yksiköt:


OKM-raportointiKyllä

Alustava JUFO-tasoNot rated


Viimeisin päivitys 2023-01-02 klo 23:00