title: Understanding Excitation Energy Transfer in Metalloporphyrin Heterodimers with Different Linkers, Bonding Structures and Geometries through Stimulated X-Ray Raman Spectroscopy.
abstract: We present simulations of stimulated X-ray Raman (SXRS) signals from covalent porphyrin heterodimers with different linkers, chemical bonding structures and geometries. The signals are interpreted in terms of valence electron wavepacket motion. One- and two-color SXRS signals can jointly indicate excitation energy transfer (EET) between the porphyrin monomers. It is shown that the SXRS signals provide a novel window into EET dynamics in multiporphyrin systems, and can be used as a powerful tool to monitor the subtle chemical environment which affects EET.
authors.affiliation: Dept. of Chemistry, University of California, 450 Rowland Hall, Irvine, California 92697, USA.
authors.forename: Yu
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Dept. of Chemistry, University of California, 450 Rowland Hall, Irvine, California 92697, USA.
authors.forename: Jason D
authors.initials: JD
authors.lastname: Biggs
authors.affiliation: Dept. of Chemistry, University of California, 450 Rowland Hall, Irvine, California 92697, USA.
authors.forename: Shaul
authors.initials: S
authors.lastname: Mukamel