SYNTHESIS, STRUCTURAL AND PHOTOPHYSICAL PROPERTIES OF A NEW DITOPIC TERPYRIDINE-BASED PROLIGAND BEARING DISELENIDE UNITS

Abstract

The present paper describes the synthesis and characterization of a new ditopic proligand with two terpiridines linked by a diselenide unit, obtained by a Steglich esterification procedure between a biscarboxylic acid functionalized with a diselenide unit and 4-([2,2':6',2''-terpyridin]-4'-yl)phenol. The compound was characterized by FT-IR, NMR (1D and 2D) and UV-Vis spectroscopies and ESI-MS analysis. Moreover, the photophysical properties of the ditopic ligand were investigated in freshly prepared dichloromethane solution. The compound was found to be emissive with a maximum centered at 354 nm.