Photoelectron imaging and theoretical calculations of gold–silver hydrides: comparing the characteristics of Au, Ag and H in small clusters

Abstract

) will be shown to be characterized by the electronegativities of Au, Ag and H. The results presented in this study provide important insights into the similar and different characteristics of these three elements in small clusters.

Apparent activation of H2O and elimination of H2 from gas‐phase mixed‐metal complexes containing silver, calcium and deprotonated glycine

“…[1][2][3][4][5][6][7][8] For example, many studies have involved the use of photoelectron spectroscopy (PES) and density functional theory (DFT) calculations to investigate the structure of gold-and silver-containing clusters. [9][10][11][12][13][14][15][16][17][18][19][20] Using these methods, Zhao et al found that Au-H interactions are stronger than Ag-H interactions in metal-hydride species, [18] and Wang and co-workers [17,19] were able to show that relativistic effects [7,21] cause Au to form covalent rather than ionic bonds with certain ligands.…”

“…There remains continued interest in the study of gas‐phase metal cluster ions as models for the chemistry that occurs on metal surfaces and nanoparticles . For example, many studies have involved the use of photoelectron spectroscopy (PES) and density functional theory (DFT) calculations to investigate the structure of gold‐ and silver‐containing clusters . Using these methods, Zhao et al found that Au‐H interactions are stronger than Ag‐H interactions in metal‐hydride species, and Wang and co‐workers were able to show that relativistic effects cause Au to form covalent rather than ionic bonds with certain ligands.…”

Vibrationally Resolved Photoelectron Imaging of Au3H–

“…The slight decrease in VDEs is consistent with the decrease of their electronegativity when the terminal gold atom of the gold tetramer is replaced by a hydrogen atom. 39 Furthermore, the vibrationally resolved spectra at lower photon energies reveal three vibrational progressions for both Au 3 H and Au 4 . The PES similarities between Au 4 − and Au 3 H − strongly hint that these two species are structurally similar.…”

Structure and Bonding in MPb5– (M = Cu, Ag, and Au): A Combined Investigation by Theoretical Calculations and Photoelectron Imaging Spectroscopy

“…This is in contrast to many other alloy clusters, in which replacements of Cu, Ag, and Au dramatically change their electronic properties. 48,51−53 For another example, bands X, A, and B in each spectrum have similar intensities and β values. That is because these bands correspond to same type of skeletal orbitals on Pb 5 , which are combinations of pure 6p of Pb atoms.…”