For the first time ever, Emory University researchers have broken through the so-called "oxo-wall" to create stable multiple chemical bonds between oxygen and platinum – once thought impossible because oxygen is extremely unstable when combined with certain metals. The breakthrough holds the potential for numerous applications in fuel cells, catalytic converters and emerging green chemistry.
Chemical bonds between metals and oxygen are known as metal-oxo species, and are found in a multitude of molecules and materials. They are dominant in the chemistry, geology and biology of many metal elements, especially during oxidation – one of the most basic and fundamental of chemical reactions. However, metal-oxo species become increasingly less stable as one moves from left to right on the periodic table. Until this work, attempts to create metal-oxo species with elements such as gold, platinum, silver, iridium and rhodium have been unsuccessful.
"The existence of such metal-oxo complexes has been presented and debated in many public forums but never realized until this research. Since this metal-oxo is a unique compound, both its physical properties and its chemical reactivities should provide new insights and break new ground," says principal investigator Craig Hill, Goodrich C. White Professor of Chemistry at Emory.
Beverly Clark | EurekAlert!
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