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Helium Nanodroplet Isolation Spectroscopy in an Undergraduate Teaching Laboratory

preprint
revised on 23.05.2020, 10:59 and posted on 26.05.2020, 07:48 by Paul Raston

A home-built helium nanodroplet isolation spectrometer has been utilized by undergraduate students in course-based experiments to investigate the rovibrational dynamics of small molecules. Helium nanodroplets are well known to simplify the spectroscopy of embedded molecules owing to their low temperature (0.4 K) and weakly interacting nature. In the infrared spectral region, this results in a small number of rotationally resolved lines that can often be collected and analyzed in several lab periods. We demonstrate the advantages of using this technique in an upper-level undergraduate chemistry course for which the laser spectroscopy of helium solvated 13C-labelled formic acid was investigated for the first time.

History

Email Address of Submitting Author

rastonpl@jmu.edu

Institution

James Madison University

Country

USA

ORCID For Submitting Author

0000-0003-3717-4154

Declaration of Conflict of Interest

no conflict of interest

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