منابع مشابه
Adsorption of Ethylene on Neutral, Anionic and Cationic Gold Clusters
The adsorption of ethylene molecule on neutral, anionic and cationic gold clusters consisting of up to 10 atoms has been investigated using density-functional theory. It is demonstrated that C2H4 can be adsorbed on small gold clusters in two different configurations, corresponding to the πand di-σ -bonded species. Adsorption in the π-bonded mode dominates over the di-σ mode over all considered ...
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A series of gold(III) complexes supported by pyridine-based bis(amidate), bis(carboxylate), and bis(iminothiolate) substituents is reported. These compounds represent rare examples of pincer-ligated gold(III) centers with multiple anionic heteroaom donors. Reactivity and electrochemical studies demonstrate the stability of these compounds and the marked difference in reduction potentials with v...
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The interfacial property of reverse micelles is an important factor affecting the catalytic activity of enzymes hosted in the micelles. In this article, the effect of gold nanoparticles (GNPs) on the catalytic activity of laccase (non-surface-active enzyme) and the related mechanism are reported. It was found that laccase activity was dependent on the size of the particle and its concentration ...
متن کاملDecay channels and appearance sizes of doubly anionic gold and silver clusters
Second electron affinities of AuN and AgN clusters and the dissociation energies for fission of the AuN 22 and AgN 22 dianions are calculated using the finite-temperature shell-correction method and allowing for triaxial deformations. Dianionic clusters with N.2 are found to be energetically stable against fission, leaving electron autodetachment as the dominant decay process. The second electr...
متن کاملNovel Features in 2 D and 3 D Neutral , Cationic and Anionic Gold Clusters Au
Novel low-energy structures are found on the potential energy surfaces of the neutral, cationic and anionic gold clusters Au5≤n≤8(Z = 0,±1) and on the neutral potential energy surface of Au9. These structures provide new insights on the 2D ⇒ 3D transition in small neutral and charged gold clusters. It is demonstrated that the size threshold for the 2D 3D coexistence is lower for cationic than n...
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ژورنال
عنوان ژورنال: Gold Bulletin
سال: 1983
ISSN: 0017-1557,2190-7579
DOI: 10.1007/bf03216571