Journal
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
Volume 7, Issue 23, Pages 4879-4883Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpclett.6b02401
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- U.S. National Science Foundation [CHE-1213410]
- Division Of Chemistry
- Direct For Mathematical & Physical Scien [1213410] Funding Source: National Science Foundation
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Electric deflection measurements on liquid helium nanodroplets doped with individual polar molecules demonstrate that the cold superfluid matrix enables full orientation of the molecular dipole along the external field. This translates into a deflection force that is increased enormously by comparison with typical deflection experiments, and it becomes possible to measurably deflect neutral doped droplets with masses of tens to hundreds of thousands of Daltons. By using continuous fluxes of fully oriented polar molecules and measuring the deflection of the doped nanodroplet beam, this approach makes it possible to directly determine the dipole moments of internally cryogenically cold molecules. The technique is broadly and generally applicable, including to complex and biological molecules.
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