%0 Journal Article %T Nonlinear optical properties of intriguing Ru [sigma]-acetylide complexes and the use of a photocrosslinked polymer as a springboard to obtain SHG active thin films %+ Dipartimento di Chimica %+ UdR INSTM di Milano %+ Istituto di Scienze e Tecnologie Molecolari del CNR %+ Politecnico di Milano [Milan] (POLIMI) %+ Institut des Sciences Chimiques de Rennes (ISCR) %+ Université Mouloud Mammeri [Tizi Ouzou] (UMMTO) %A Colombo, Alessia %A Dragonetti, Claudia %A Marinotto, Daniele %A Righetto, Stefania %A Griffini, Gianmarco %A Turri, Stefano %A Akdas-Kilig, H. %A Fillaut, Jean-Luc %A Amar, Anissa %A Boucekkine, Abdou %A Katan, Claudine %Z This work was granted access to the HPC resources of CINES and IDRIS under the allocations 2015-[x2015080649] made by GENCI (Grand Equipement National de Calcul Intensif). %Z A. A., A. B. and C. K. gratefully acknowledge the technical support provided by Rémi Marchal. %< avec comité de lecture %@ 1477-9226 %J Dalton Transactions %I Royal Society of Chemistry %V 45 %N 27 %P 11052-11060 %8 2016 %D 2016 %R 10.1039/c6dt01762b %M 27315336 %K nonlinear optics %K SHG %K NLO %K DFT %K few states models %Z Chemical Sciences/Theoretical and/or physical chemistry %Z Chemical Sciences/Coordination chemistry %Z Physics [physics]/Physics [physics]/Optics [physics.optics]Journal articles %X This work reports on the design, synthesis and photo-physical properties of two ruthenium σ-alkynyl complexes. It is shown that, despite similar optical absorption features recorded in solution, the introduc- tion of a benzaldehyde moiety leads to an improved non-linear optical (NLO) response as measured by Electric Field Induced Second Harmonic (EFISH) generation and Third Harmonic Generation (THG) at 1.907 μm, both related to the second order hyperpolarizability. These structure–property relationships are rationalized based on few state modelling. Complex 2 is subsequently processed to afford composite films that demonstrate a χ2 of 1.4 pm V−1, quite remarkable given the ease of film processing implemented in this work. %G English %2 https://univ-rennes.hal.science/hal-01333963/document %2 https://univ-rennes.hal.science/hal-01333963/file/DaltTrans2016_HAL.pdf %L hal-01333963 %U https://univ-rennes.hal.science/hal-01333963 %~ UNIV-RENNES1 %~ CNRS %~ INSA-RENNES %~ ENSC-RENNES %~ ISCR %~ SCR_OMC2012 %~ ISCR-OMC %~ ISCR-CTI %~ UR1-SPM %~ GENCI %~ INC-CNRS %~ UR1-UFR-SPM %~ UR1-HAL %~ UR1-SDLM %~ TEST-UNIV-RENNES %~ TEST-UR-CSS %~ UNIV-RENNES %~ INSA-GROUPE %~ UR1-MMS %~ TEST2-HALCNRS