20 September 2002
Vol 297, Issue 5589

About The Cover

Cover image expansion

COVER A proposed structure of the He8-carbonyl sulfide (OCS) supermolecule, as construed from vibrational and rotational spectroscopic data. The formation of the first helium solvation layer begins with an equatorial "doughnut" of five helium atoms around the OCS molecule. The spectroscopic study of successive solvation of OCS with helium atoms may shed light on the origins of superfluidity. 2030 [Image: W. Jäger and K. Brendel]