Infrared Induced Reactivity on the Surface of Isolated Size-Selected Clusters: Dissociation of N₂O on Rhodium Clusters

Abstract

Multiple photon infrared excitation of size-selected Rh(6)N(2)O(+) clusters drives surface chemistry resulting in partially oxidized clusters.

Electronic structure and thermochemical properties of neutral and anionic rhodium clusters Rhn, n=2–13. Evolution of structures and stabilities of binary clusters RhmM (M=Fe, Co, Ni; m=1–6)

“…For example, Ghosh and coworkers [1] suggested that Rh clusters are good catalysts for NO reduction. Furthermore, the high activity of rhodium clusters and surfaces for the adsorption and decomposition of N 2 O, CO had been investigated by far-infrared multiple photon dissociation experiments and DFT calculations [2][3][4][5][6]. Another key property of transition metals generally and rhodium clusters particularly is their magnetism.…”

Communication: CO oxidation by silver and gold cluster cations: Identification of different active oxygen species

“…7 In a very recent communication, Hamilton et al reported evidence of infrared driven surface chemistry of N 2 O on Rh + n clusters. 8 The adsorption of CO on pure gold [9][10][11][12] and silver [10][11][12] cluster cations and anions was investigated previously, revealing size specific CO saturations and the strongest binding energies of CO to positively charged gold clusters. In contrast, small negatively charged silver clusters exhibit no reactivity toward CO at all.…”

Chemical Reactivity on Gas‐Phase Metal Clusters Driven by Blackbody Infrared Radiation

“…Previous studies by IR multiple photon dissociation spectroscopy (IR-MPD) [8] and collisional activation [9] revealed that the reactive channel [Eq. (1a)]…”

“…The IR-MPD spectra of these complexes confirm that the simulations provide a very good representation of the experimental spectra in the region of the N 2 O modes. [8] Also shown in Figure 3 is the blackbody spectral energy density distribution calculated at 300 K from Equation (2). It is clear from Figure 3 that the NN stretch cannot contribute significantly to any IR-driven process by virtue of the low number density of photons at this wavenumber.…”