Structure Determination of Gas-Phase Niobium and Tantalum Carbide Nanocrystals 
via Infrared Spectroscopy

van Heijnsbergen, Deniz; Fielicke, André; Meijer, Gerard; von Helden, Gert

doi:10.1103/PhysRevLett.89.013401

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Structure Determination of Gas-Phase Niobium and Tantalum Carbide Nanocrystals via Infrared Spectroscopy

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van Heijnsbergen, D., Fielicke, A., Meijer, G., & von Helden, G. (2002). Structure Determination of Gas-Phase Niobium and Tantalum Carbide Nanocrystals via Infrared Spectroscopy. Physical Review Letters, 89(1): 013401. doi:10.1103/PhysRevLett.89.013401.

Cite as: https://hdl.handle.net/21.11116/0000-000B-4695-E

Abstract

Niobium and tantalum carbide clusters have been isolated in the gas phase and irradiated with intense tunable infrared (IR) light. Stable neutral clusters are selectively ionized and subsequently detected in a mass spectrometer. By tuning the IR frequency, infrared multiphoton absorption spectra are obtained for a whole range of clusters. These mass-selective IR spectra lead to insights into the structures of small niobium and tantalum carbide clusters and nanocrystals.