—Revealing Pictures Of Molecular Orbitals “In a new use, photoelectron spectroscopy provides distribution maps of electrons in molecular orbitals” Photoelectron spectroscopy can provide information not just on electron binding energies but also on the structure of the molecular orbitals from which the electrons come, reports a group led by Peter Puschnig of the University of Leoben, in Austria (Science, DOI: 10.1126/science.1176105). Angle-resolved photoelectron spectroscopy (ARPES) normally involves measuring the kinetic energy and angular distribution of electrons emitted from solids to determine the electron binding energies. Puschnig and colleagues show that scientists can also use the emission intensity to map the distribution of electrons, providing a snapshot of the molecular orbital structure.
by Jyllian N. Kemsley |
September 14, 2009