Organometallic materials for non-linear optics. Second harmonic generation by (aryldiazovinylidene) ruthenium complexes; X-ray structure of [Ru(CCPhNNC<sub>6</sub>H<sub>4</sub>OMe-4)(PPh<sub>3</sub>)<sub>2</sub>(η-C<sub>5</sub>H<sub>5</sub>)][BF<sub>4</sub>]·CH<sub>2</sub>Cl<sub>2</sub>
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Whittall, Ian R.
Cifuentes, Marie P.
Costigan, Marion J.
Humphrey, Mark G.
Goh, Seng C.
Skelton, Brian W.
White, Allan H.
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A series of (aryldiazovinylidene)ruthenium complex salts of general formula [Ru(CCPhNNAr)(PPh3)2(η-C5H5)][X] has been synthesized. The Kurtz method was used to investigate their effectiveness in second harmonic generation, and revealed efficiencies up to that of a urea reference standard. An X-ray structural study of the complex exhibiting the strongest response, [Ru(CCPhNNC6H4OMe-4)(PPh3)2(η-C5H5)][BF4]·CH2Cl2 revealed that the material packs centrosymmetrically, suggesting that the observed moderate bulk χ(2) responses arise from large molecular β responses and some crystal mispacking.
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Journal of Organometallic Chemistry
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