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 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.
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 / A. Colombo, C. Dragonetti, D. Marinotto, S. Righetto, G. Griffini, S. Turri, H. Akdas Kilig, J. Fillaut, A. Amar, A. Boucekkine, C. Katan. - In: DALTON TRANSACTIONS. - ISSN 1477-9226. - 45:27(2016), pp. 11052-11060.
|Titolo:||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|
COLOMBO, ALESSIA (Primo)
DRAGONETTI, CLAUDIA (Corresponding)
|Parole Chiave:||molecular quadratic hyperpolarizabilities; trade-off optimization; ray crystal-structure; organometallic complexes; building-blocks; metal-complexes; cubic hyperpolarizabilities; 2nd-harmonic generation; ruthenium complexes; alkynyl complexes|
|Settore Scientifico Disciplinare:||Settore CHIM/03 - Chimica Generale e Inorganica|
|Data di pubblicazione:||2016|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1039/c6dt01762b|
|Appare nelle tipologie:||01 - Articolo su periodico|