Caged metal (IMAGE)

University of Iowa

Caged metal

Caption

Chemists led by the University of Iowa have isolated the rare-earth metal terbium under normal environmental conditions, which could lead to greater uses. The illustration shows how the team devised a cagelike, molecular structure primarily composed of tungsten (gray) and oxygen atoms (red) that bound the terbium (brown), creating the conditions for the terbium atom to change its oxidation state and be separated.  

Credit

Korey Carter lab, University of Iowa

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