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10 November 2003 Molecular quadratic nonlinear optical properties of dipolar ruthenium(II) arsine complexes
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A series of complex salts in which trans-bis[1,2-phenylenebis(dimethylarsine)]chlororuthenium(II) electron donor groups are connected to pyridyl or pyridinium electron acceptors has been prepared. These chromophores exhibit intense, visible metal-to-ligand charge-transfer (MLCT) absorptions and reversible Ru(III/II) (and also in some cases ligand-based) redox processes. Stark (electroabsorption) spectroscopic studies have been used to determine dipole moment changes for the MLCT excitations. Static first hyperpolarizabilities have been calculated according to the two-state model, allowing the derivation of structure-activity correlations for the molecular quadratic nonlinear optical responses.
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Josephine L. Harries, Benjamin J. Coe, James A. Harris, and Bruce S. Brunschwig "Molecular quadratic nonlinear optical properties of dipolar ruthenium(II) arsine complexes", Proc. SPIE 5212, Linear and Nonlinear Optics of Organic Materials III, (10 November 2003);

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