Chemical Science: Scientists Capture First Images of Molecules Before and After Reaction

Friday 31 May 2013

Scientists Capture First Images of Molecules Before and After Reaction

Every chemist’s dream – to snap an atomic-scale picture of a chemical before and after it reacts – has now come true, thanks to a new technique developed by chemists and physicists at the University of California, Berkeley.

Using a state-of-the-art atomic force microscope, the scientists have taken the first atom-by-atom pictures, including images of the chemical bonds between atoms, clearly depicting how a molecule’s structure changed during a reaction. Until now, scientists have only been able to infer this type of information from spectroscopic analysis.

Non-contact atomic force microscope (nc-AFM) images (center) of a molecule before and after a reaction improve immensely over images (top) from a scanning tunneling microscope and look just like the classic molecular structure diagrams (bottom). (Credit: Felix Fischer and Michael Crommie, UC Berkeley)

Credit: http://newscenter.berkeley.edu

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Friday 31 May 2013

Scientists Capture First Images of Molecules Before and After Reaction