Cooling and collisions of large gas phase molecules | Zendy

David Patterson | Zendy; Edem Tsikata | Zendy; John M. Doyle | Zendy

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Cooling and collisions of large gas phase molecules

Author(s) -

David Patterson,

Edem Tsikata,

John M. Doyle

Publication year - 2010

Publication title -

physical chemistry chemical physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.053

H-Index - 239

eISSN - 1463-9084

pISSN - 1463-9076

DOI - 10.1039/c002764b

Subject(s) - naphthalene , molecule , chemistry , gas phase , analytical chemistry (journal) , volume (thermodynamics) , flux (metallurgy) , materials science , thermodynamics , chromatography , organic chemistry , physics

Cold and dense samples of naphthalene (C(10)H(8)) are produced using buffer gas cooling in combination with rapid, high flow molecule injection. The observed naphthalene density is n approximately 10(11) cm(-3) over a volume of a few cm(3) at a temperature of 6 K. We observe naphthalene-naphthalene collisions through two-body loss of naphthalene with a loss cross section of sigma(N-N) = 1.4 x 10(-14) cm(2). 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 methods(1) to produce cold, high flux, continuous molecular beams.

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