title: Spectroscopic studies of quantum solvation in 4HeN-N2O clusters.
abstract: High resolution microwave and infrared spectra of He(N)-N2O clusters were studied in the range N=3 to 12. The apparent cluster moments of inertia increase from N=3 to 6, but then decrease, showing oscillatory behavior for N=7 to 12. This provides direct experimental evidence for the decoupling of helium atoms from the rotation of the dopant molecule in this size regime, signaling the transition from a molecular complex to a quantum solvated system and directly exploring the microscopic evolution of "molecular superfluidity."
authors: Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada T6G 2G2.
authors: Yunjie
authors: Y
authors: Xu
authors: Wolfgang
authors: W
authors: Jäger
authors: Jian
authors: J
authors: Tang
authors: A R W
authors: AR
authors: McKellar