| Title: | Probing the Metal-to-Ligand Charge Transfer First Excited State in (eta(6)-Naphthalene)Cr(CO)(3) and (eta(6)-Phenanthrene)Cr(CO)(3) by Resonance Raman Spectroscopy and Density Functional Theory Calculations
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| Authors: | Picardi, Gennaro Keyes, Tia E. Forster, Robert J. Long, Conor, 2011 |
| Abstract: | The nature of the lowest energy optical transition for the complexes
(eta(6)-naphtlialene)Cr(CO)(3) and (eta(6)-phenanthrene)Cr(CO)(3) in the
solid state has been investigated by Raman spectroscopy using a range of
different excitation wavelengths progressively approaching the resonant
condition. Examination of the resonantly enhanced Raman modes confirms
that the first absorption is attributed predominantly to a
metal-to-arene charge transfer transition for both complexes. A notable
difference in the photochemistry of the two complexes was observed. In
the case of the phenanthrene complex, population of the lowest energy
excited state leads to a photochemical process which resulted in the
loss of the arene ligand and formation of Cr(CO)(6). |
| ICHEC Project: | Estimating the potential energy surfaces around pi-coordinated arene ligands in (eta-Arene)Cr(CO)3 complexes |
| Publication: | J. Phys. Chem. A, 2011, 115 (42), pp 11641–11651 |
| URL: | http://pubs.acs.org/doi/abs/10.1021/jp206466b |
| Status: | Published |
