The synthesis and second-order nonlinear optical (NLO) properties of seven novel fullerene-C60 derivatives are reported. In these donor-bridge-acceptor systems, the fullerene unit (acceptor) is connected through a cyclopropane ring to an ethynyl thienyl fragment (bridge) which binds a trimethylsilyl or platinum alkynyl fragment (donor). All derivatives are NLO-active, as determined by the electric field induced second harmonic generation technique, but the fullerene platinum alkynyl complexes are characterized by a particularly large second-order NLO response. Substitution of the thienyl fragment by a terthiophene leads to an increase of the NLO performance by using trimethylsilyl as a donor group, whereas no effect is observed in the case of platinum derivatives. Remarkably, fullerene platinum alkynyl complexes can be dispersed in poly(methyl methacrylate) or polystyrene, affording NLO-active polymer films.
Novel Fullerene Platinum Alkynyl Complexes with High Second-Order Nonlinear Optical Properties as a Springboard for NLO-Active Polymer Films / C. Dragonetti, A. Colombo, M. Fontani, D. Marinotto, F. Nisic, S. Righetto, D. Roberto, F. Tintori, S. Fantacci. - In: ORGANOMETALLICS. - ISSN 0276-7333. - 35:7(2016), pp. 1015-1021.
|Titolo:||Novel Fullerene Platinum Alkynyl Complexes with High Second-Order Nonlinear Optical Properties as a Springboard for NLO-Active Polymer Films|
DRAGONETTI, CLAUDIA (Primo)
COLOMBO, ALESSIA (Corresponding)
|Parole Chiave:||Organic Chemistry; Physical and Theoretical Chemistry; Inorganic Chemistry|
|Settore Scientifico Disciplinare:||Settore CHIM/03 - Chimica Generale e Inorganica|
|Data di pubblicazione:||2016|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1021/acs.organomet.6b00094|
|Appare nelle tipologie:||01 - Articolo su periodico|