Coe, Benjamin J., Harris, James A., Jones, Lathe A., Brunschwig, Bruce S., Song, Kai, Clays, Koen, Garín, Javier, Orduna, Jesús, Coles, Simon J. and Hursthouse, Michael B. (2005) Syntheses and properties of two-dimensional charged nonlinear optical chromophores incorporating redox-switchable cis-tetraammineruthenium(II) centers. Journal of the American Chemical Society, 127 (13), 4845-4859. (doi:10.1021/ja0424124).
Abstract
In this article, we describe a series of new complex salts in which electron-donating cis-{Ru(II)(NH3)(4)}(2+) centers are connected to two electron-accepting N-methyl/aryl-pyridinium groups. These V-shaped complexes contain either monodentate 4,4'-bipyridyl-derived ligands or related chelates based on 2,2':4,4":4',4'''-quaterpyridyl 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 ? ?* metal-to-ligand charge-transfer bands. These experiments reveal that these dipolar pseudo-C(2v)chromophores exhibit two substantial components of the ? tensor, ?(zzz)and ?(zyy), with the difference between them being most marked for the nonchelated systems. Time-dependent density-functional theory and finite field calculations serve to further illuminate the electronic structures and associated linear and NLO properties of the new chromophoric salts.
This record has no associated files available for download.
More information
Identifiers
Catalogue record
Export record
Altmetrics
Contributors
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.