Title: Three-dimensional non linear optical chromophores based on metal-to-ligand charge-transfer from ruthenium(II) or iron(II) centers
Authors: Coe, BJ ×
Harris, JA
Brunschwig, BS
Asselberghs, Inge
Clays, Koen
Garin, J
Orduna, J #
Issue Date: Sep-2005
Publisher: Amer chemical soc
Series Title: Journal of the American Chemical Society vol:127 issue:38 pages:13399-13410
Abstract: In this article, we describe a series of new complex salts in which electron-rich transition-metal centers are coordinated to three electron-accepting N-methyl/aryl-2,2':4,4":4',4"'-quaterpyridinium ligands. These complexes contain either Ru-II or Fell ions and have been characterized by using various techniques, including electronic absorption spectroscopy and cyclic voltammetry. Molecular quadratic nonlinear optical (NLO) responses beta have been determined by using hyper-Rayleigh scattering at 800 nm and also via Stark (electroabsorption) spectroscopic studies on the intense, visible d -> pi* metal-to-ligand charge-transfer bands. The latter experiments reveal that these putatively octupolar D-3 chromophores exhibit two substantial components of the beta tensor which are associated with transitions to dipolar excited states. Computations involving time-dependent density-functional theory and the finite field method serve to further illuminate the electronic structures and associated linear and NLO properties of the new chromophoric salts.
ISSN: 0002-7863
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Imaging and Photonics
× corresponding author
# (joint) last author

Files in This Item:

There are no files associated with this item.

Request a copy


All items in Lirias are protected by copyright, with all rights reserved.

© Web of science