Visualizing wavefunctions in molecules

In 2011, the Zurich Laboratory of IBM Research Division, based on the derivative rule of tunneling theory, using a CO-terminated tip, made high-resolution molecular orbital imaging with a direct observation of the nodal structure of individual wavefunctions in organic molecules. The experimental breakthrough will help future generations of chemists in obtaining an intuitive understanding of molecular properties that will guide them to novel solutions in all areas of chemistry. (authors)