Contour plot in cylindrical coordinates of the PES with the molecule at its vibrational state. The molecule is located on the axis with its center of mass at the origin.
Angular distribution of helium atoms around the impurity in the complexes with , 5, 6, 8, and 12. The angle and corresponds to the oxygen ends of the impurity. The density is normalized according to .
density (left panel) and averaged positions of the atoms around the molecule for clusters with .
Calculated chemical potential for clusters.
Vibrational band origin shift for the clusters as a function of . Filled circles: Experimental values from Ref. 19. Filled squares: Present PIMC calculations.
Effective rotational constant and effective centrifugal distortion constant for clusters as a function of . Filled circles: Experimental values from Ref. 19. Filled squares: Present PIMC calculations.
Total energies of the cluster with at its vibrational state and vibrational excited state , and the chemical potential . All energies are given in . The statistical errors are given in parentheses.
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