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Issue 7, 2015
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A slow, continuous beam of cold benzonitrile

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A cold, continuous, high flux beam of benzonitrile has been created via buffer gas cooling. The beam has a typical forward velocity of 67 ± 5 m s−1, a velocity spread of ±30 m s−1 and a typical flux of 1015 molecules s−1, measured via microwave spectroscopy. This beam represents the slowest demonstrated forward velocity for any cold beam of medium sized (>5 atoms) polyatomic molecules produced to date, demonstrating a new source for high resolution spectroscopy. The expected resolution of a spectrometer based on such beams exceeds current instrument-limited resolution by almost an order of magnitude. This source also provides an attractive starting point for further spatial manipulation of such molecules, including eventual trapping.

Graphical abstract: A slow, continuous beam of cold benzonitrile

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The article was received on 26 Aug 2014, accepted on 30 Dec 2014 and first published on 07 Jan 2015

Article type: Paper
DOI: 10.1039/C4CP03818E
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Phys. Chem. Chem. Phys., 2015,17, 5372-5375

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    A slow, continuous beam of cold benzonitrile

    D. Patterson and J. M. Doyle, Phys. Chem. Chem. Phys., 2015, 17, 5372
    DOI: 10.1039/C4CP03818E

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