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Università degli Studi di Milano

[Ru] = RuCl(dppe) 2. [Ru]. O 2 N. conjugated organic bridge. Università degli Studi di Milano. Dipartimento di Chimica Inorganica, Metallorganica e Analitica. The Australian National University (ANU). Department of chemistry.

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Università degli Studi di Milano

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  1. [Ru] = RuCl(dppe)2 [Ru] O2N conjugated organic bridge Università degli Studi di Milano Dipartimento di Chimica Inorganica, Metallorganica e Analitica The Australian National University (ANU) Department of chemistry SYNTHESIS OF NEW ALKYNYL Ru(II) ORGANOMETALLIC COMPOUNDS WITH EXTENDED DIPOLAR CHAINS FOR SECOND ORDER NONLINEAR OPTICAL APPLICATIONS Luca Rigamonti Mark G. Humphrey VI Convegno Nazionale sulla Scienza e Tecnologia dei Materiali 12-15 giugno 2007

  2. PD14

  3. OBSERVATIONS FIRST n = 0, 1, 2 (preceding work) [Ru] = RuCl(dppm)2 for example: Hurst et al. Organometallics2001, 20, 4664-4675 Nonlinearity increases in b and b0 in proceeding from n = 0 to 1 and 2 SECOND [Ru] = RuCl(dppm)2 Powell, C. E.; Humphrey, M. G. Coord. Chem. Rev.2004, 725-756 Increase in b values due to the substitution of yne linkage with an ene one

  4. COMPOUNDS Introduction of ene linkages in three-ring chains Electronic effects of the double bond vs triple bond terminal ‘middle’ two double bonds Increase of chain length to ascertain the saturation of b values Introduction of ‘greasy groups’ to ensure sufficient solubility to ligands

  5. HRS MEASUREMENTS Enhancement of b values increasing the chain length bcorr (10-30 esu) Second-order nonlinearity increased by ene linkages HRS = Hyper Rayleigth Scattering technique Department of Chemistry of the Katholièke Universiteit Leuven (Professor Koen Clays) [Ru] = RuCl(dppe)2 or RuCl(dppm)2

  6. EFISH MEASUREMENTS Enhancement of b values increasing the chain length mg bvec (10-48 esu) Second-order nonlinearity increased by ene linkages EFISH = Electric Field Induced Second Harmonic generation technique Dipartimento CIMA of the Università degli Studi di Milano (Dott.ssa Stefania Righetto) [Ru] = RuCl(dppe)2 or RuCl(dppm)2

  7. THANKS TO… Professor Mark G. Humphrey and coworkers

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