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Saarbrücken chemists succeed in synthesizing a molecule first predicted 20 years ago - EurekAlert
<p><strong>Some 70 years ago in the 1950s, chemists discovered the first metallocenes – organometallic molecules that came to be known as sandwich complexes or sandwich molecules. The name reflects the fact that these molecules consist of two separate carbon rings with a metal atom (the 'sandwich filling') nestled between them. In 2005, theoretical studies predicted the existence of a stable sandwich molecule containing two different metal atoms. Almost twenty years later and in a world-first, Inga Bischoff, a doctoral research student in Dr. André Schäfer's group at Saarland University, has now managed to synthesize a 'heterobimetallic dimetallocene'. </strong></p>
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