Abstract
A rotationally resolved infrared spectrum has been obtained for S molecules captured inside of helium clusters of approximately 4000 atoms. The spectrum is interpreted in terms of a spherical top Hamiltonian, although the resulting rotational constant is considerably smaller than that of free S. This can be attributed to the interaction between the molecule and the surrounding helium liquid. The results indicate that the S is located inside the helium cluster and a fit to the spectrum yields a rotational temperatures for the perturbed S of K.
- Received 3 April 1995
DOI:https://doi.org/10.1103/PhysRevLett.75.1566
©1995 American Physical Society