Bond length and angle changes in charge transfer excited states

INOR 933

Rachel M. Stephenson, rachels@chem.ucla.edu, Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive, East, Los Angeles, CA 90095 and Jeffrey I. Zink, zink@chem.ucla.edu, California NanoSystems Institute and Department of Chemistry and Biochemistry, University of California, Los Angeles, 405 Hilgard Avenue, Los Angeles, CA 90095-1569.
Excited state distortions in metal to ligand and ligand to metal charge transfer compounds are obtained from electronic and resonance Raman spectra modeled within the time dependant theory of spectroscopy. These methods are applied to two uncommon types of systems. The first type of system includes compounds which exhibit a charge transfer between the bridge and multiple symmetry-equivalent ligands. The sign and magnitude of the coupling between the localized charge transfer states determines the extent to which the effects are visible in the electronic spectra. An examples of this type of system is bis(2,9-dimethyl-1,10-phenanthroline)copper(I). In the second type of system, diammino(o-benzoquinonediimine)dichlororuthenium(II), the molecule exhibits very little damping, leading to overtone and combination bands within the resonance Raman spectrum. The bond lengths will be calculated and interpreted.
 

Spectroscopy of Inorganic Systems
9:00 AM-11:20 AM, Thursday, August 23, 2007 BCEC -- 211, Oral

Division of Inorganic Chemistry

The 234th ACS National Meeting, Boston, MA, August 19-23, 2007