Quantum solvation of carbonyl sulfide with helium atoms

Jian Tang, Yunjie Xu, A. R.W. McKellar, Wolfgang Jäger

Research output: Contribution to journalArticlepeer-review

184 Citations (Scopus)


High-resolution infrared and microwave spectra of HeN-carbonyl sulfide (HeN-OCS) clusters with N ranging from 2 to 8 have been detected and unambiguously assigned. The spectra show the formation of a solvation layer beginning with an equatorial "donut" of five helium atoms around the OCS molecule. The cluster moment of inertia increases as a function of N and overshoots the liquid droplet limit for N > 5, implying that even atoms in the first solvation shell are decoupled from the OCS rotation in helium nanodroplets. To the extent that this is due to superfluidity, the results directly explore the microscopic evolution of a phenomenon that is formally macroscopic in nature.

Original languageEnglish
Pages (from-to)2030-2033
Number of pages4
Issue number5589
Publication statusPublished - Sept 20 2002
Externally publishedYes

ASJC Scopus subject areas

  • General


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