Nonlinear optical properties of intriguing Ru σ-acetylide complexes and the use of a photocrosslinked polymer as a springboard to obtain SHG active thin films.
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 introduction 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 is subsequently processed to afford composite films that demonstrate a χ(2) of 1.4 pm V(-1), quite remarkable given the ease of film processing implemented in this work.
Dip. di Chimica dell'Università degli Studi di Milano, via Golgi 19, 20133 Milano, Italy. claudia.dragonetti@unimi.it and UdR INSTM and Centro, di Eccellenza CIMAINA dell'Università degli Studi di Milano, via Golgi 19, 20133 Milano, Italy.
Alessia
A
Colombo
Dip. di Chimica dell'Università degli Studi di Milano, via Golgi 19, 20133 Milano, Italy. claudia.dragonetti@unimi.it and UdR INSTM and Centro, di Eccellenza CIMAINA dell'Università degli Studi di Milano, via Golgi 19, 20133 Milano, Italy and ISTM-CNR, via Golgi 19, 20133 Milano, Italy.
Claudia
C
Dragonetti
UdR INSTM and Centro, di Eccellenza CIMAINA dell'Università degli Studi di Milano, via Golgi 19, 20133 Milano, Italy and ISTM-CNR, via Golgi 19, 20133 Milano, Italy.
Daniele
D
Marinotto
Dip. di Chimica dell'Università degli Studi di Milano, via Golgi 19, 20133 Milano, Italy. claudia.dragonetti@unimi.it and UdR INSTM and Centro, di Eccellenza CIMAINA dell'Università degli Studi di Milano, via Golgi 19, 20133 Milano, Italy.
Stefania
S
Righetto
Dept of Chemistry, Materials and Chemical Engineering Giulio Natta, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133, Milano, Italy.
Gianmarco
G
Griffini
Dept of Chemistry, Materials and Chemical Engineering Giulio Natta, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133, Milano, Italy.
Stefano
S
Turri
Institut des Sciences Chimiques de Rennes, ISCR, UMR 6226, CNRS, Université, de Rennes 1, 35042, Rennes, France. jean-luc.fillaut@univ-rennes1.fr claudine.katan@univ-rennes1.fr.
Huriye
H
Akdas-Kilig
Institut des Sciences Chimiques de Rennes, ISCR, UMR 6226, CNRS, Université, de Rennes 1, 35042, Rennes, France. jean-luc.fillaut@univ-rennes1.fr claudine.katan@univ-rennes1.fr.
Jean-Luc
JL
Fillaut
Institut des Sciences Chimiques de Rennes, ISCR, UMR 6226, CNRS, Université, de Rennes 1, 35042, Rennes, France. jean-luc.fillaut@univ-rennes1.fr claudine.katan@univ-rennes1.fr and Département de Chimie, UMMTO, 15000 Tizi-Ouzou, Algeria.
Anissa
A
Amar
Institut des Sciences Chimiques de Rennes, ISCR, UMR 6226, CNRS, Université, de Rennes 1, 35042, Rennes, France. jean-luc.fillaut@univ-rennes1.fr claudine.katan@univ-rennes1.fr.
Abdou
A
Boucekkine
Institut des Sciences Chimiques de Rennes, ISCR, UMR 6226, CNRS, Université, de Rennes 1, 35042, Rennes, France. jean-luc.fillaut@univ-rennes1.fr claudine.katan@univ-rennes1.fr.
Claudine
C
Katan