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Samenvatting
Complexes of atomic gold with a variety of ligands have been formed by passing helium nanodroplets (HNDs) through two pickup cells containing gold vapor and the vapor of another dopant, namely a rare gas, a diatomic molecule (H2, N2, O2, I2, P2 ), or various polyatomic molecules (H2O, CO2, SF6, C6H6, adamantane, imidazole, dicyclopentadiene, and fullerene). The doped HNDs were irradiated by electrons; ensuing cations were identified in a high-resolution mass spectrome-ter. Anions were detected for benzene, dicyclopentadiene, and fullerene. For most ligands L, the abundance distribution of AuLn+ versus size n displays a remarkable enhancement at n = 2. The propensity towards bis-ligand formation is attributed to the formation of covalent bonds in Au+L2 which adopt a dumbbell structure, L-Au+-L, as previously found for L = Xe and C60 . Another interest-ing observation is the effect of gold on the degree of ionization-induced intramolecular fragmentation. For most systems gold enhances the fragmentation, i.e., intramolecular fragmentation in AuLn + is larger than in pure Ln+ . Hydrogen, on the other hand, behaves differently, as intramolecular fragmentation in Au(H2 )n+ is weaker than in pure (H2 )n+ by an order of magnitude.
Originele taal-2 | English |
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Artikelnummer | 3484 |
Tijdschrift | Molecules |
Volume | 26 |
Nummer van het tijdschrift | 12 |
DOI's | |
Status | Published - 1-jun.-2021 |
Vingerafdruk
Duik in de onderzoeksthema's van 'Complexes with Atomic Gold Ions: Efficient Bis-Ligand Formation'. Samen vormen ze een unieke vingerafdruk.Projecten
- 1 Afgelopen
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oLife Fellowship Programme
Roos, W. (Hoofdonderzoeker), van der Tak, F. (Hoofdonderzoeker), Zijlstra, W. (Hoofdonderzoeker), Dobos, V. (Postdoc), Heinen, L. (Postdoc), Thangaratnarajah, C. (Postdoc), Hoekzema, M. (Postdoc), Blokhuis, A. (Postdoc), Mascotti, L. (Postdoc), Padin Santos, D. (Postdoc), Chopra, A. (Postdoc), Obermaier, S. (Postdoc), Driver, M. (Postdoc), Moreira Goulart, M. (Postdoc), Sasidharan, S. (Postdoc), Samar Mahapatra, S. (Postdoc), Zylstra, A. (Postdoc), Geiger, Y. (Postdoc), Llopis Lorente, A. (Postdoc), Aschmann, D. (Postdoc) & Kulala Vittala, S. (Postdoc)
01/04/2019 → 31/03/2024
Project: Research