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Probing the Structure of Metal Cluster-Adsorbate Systems with High-Resolution Infrared Spectroscopy

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Science  20 Apr 2001:
Vol. 292, Issue 5516, pp. 481-484
DOI: 10.1126/science.1058896

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Abstract

High-resolution infrared laser spectroscopy was used to obtain rotationally resolved infrared spectra of adsorbate-metal complexes. The method involves forming the bare metal clusters in helium nanodroplets and then adding a molecular adsorbate (HCN) and recording the infrared spectrum associated with the C-H stretching vibration. Rotationally resolved spectra were obtained for HCN-Mgn (n = 1 to 4). The results suggest a qualitative change in the adsorbate–metal cluster bonding with cluster size.

  • * To whom correspondence should be addressed. E-mail: remiller{at}unc.edu

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