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Issue 33, 2010
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Cooling and collisions of large gas phase molecules

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Cold and dense samples of naphthalene (C10H8) are produced using buffer gas cooling in combination with rapid, high flow molecule injection. The observed naphthalene density is n ≈ 1011 cm−3 over a volume of a few cm3 at a temperature of 6 K. We observe naphthalenenaphthalene collisions through two-body loss of naphthalene with a loss cross section of σNN = 1.4 × 10−14 cm2. Analysis is presented that indicates that this combination of techniques will be applicable to many comparably sized molecules. This technique can also be combined with cryogenic beam methods1 to produce cold, high flux, continuous molecular beams.

Graphical abstract: Cooling and collisions of large gas phase molecules

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The article was received on 09 Feb 2010, accepted on 21 Apr 2010 and first published on 15 Jun 2010

Article type: Paper
DOI: 10.1039/C002764B
Citation: Phys. Chem. Chem. Phys., 2010,12, 9736-9741

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    Cooling and collisions of large gas phase molecules

    D. Patterson, E. Tsikata and J. M. Doyle, Phys. Chem. Chem. Phys., 2010, 12, 9736
    DOI: 10.1039/C002764B

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