Novel molecule makes its debut (Feb 18)
http://physicsweb.org/article/news/9/2/11
Physicists in Switzerland have observed a novel type of molecule known
as an exciplex - short for excited complex - for the first time. Peter
Moroshkin and colleagues at the University of Fribourg have seen
evidence for an exciplex that contains one caesium atom and seven helium
atoms, as well as a simpler version that contains just two helium atoms
(D Nettels et al. 2005 Phys. Rev. Lett. 94 063001). Until recently it
was thought that exciplexes containing more than two helium atoms could
not exist.
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