Hybrid Silsesquioxane Films Doped with Rhenium Complexes as Oxygen Sensors

GÓMEZ, MARÍA L.; PALACIOS, RODRIGO E.; PIZARRO URZUA NANCY A.; VEGA CARVALLO, ANDRÉS

Mar del Plata

Congreso; XVI SIMPOSIO LATINOAMERICANO DE POLÍMEROS Y XIV CONGRESO IBEROAMERICANO DE POLÍMEROS; 2018

Instituto de Investigaciones en Ciencia y Tecnología de Materiales, INTEMA (UNMdP-CONICET).

INTRODUCTION. Silsesquioxanes are polymeric hybrid organic-inorganic materials of structural formula (RSiO1.5)n, where R groups are organic bridges between Si-O-Si bonds. The inorganic nature of these materials makes them inert, resistant to temperature, chemical agents, etc. Meanwhile organic domains promote dispersion of certain compounds within the organic nanodomains to improve the resulting material's properties.1 In this work, two distinct Rhenium complexes with phenanthroline ligands were dispersed within two different silsesquioxane matrices. The first matrix containing a phenyl group and the second one containing a pendant dodecyl chain. The photo emission of these materials in the presence or absence of molecular oxygen (O2) was characterized and the results show a potential use as ratiometric O2 sensors.