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April 23rd, 2009

Molecule predicted by theory discovered

Abstract:
German-led scientists say they have observed for the first time a rare molecule, the existence of which has until now only been predicted by theory.

The researchers from the University of Stuttgart and the University of Oklahoma told the BBC the so-called Rydberg molecule was theorized to form when one of its two atoms has an electron orbiting at an extreme distance from the atom's nucleus.

First predicted by physicist Chris Greene of the University of Colorado, the existence of the Rydberg molecule is consistent with quantum theories proposed in 1934 by Nobel prize-winning physicist Enrico Fermi, the researchers said.

The scientists said they observed a Rydberg molecule by super-cooling rubidium molecules to a temperature near absolute zero -- minus 273 degrees Celsius.

Source:
upi.com

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