Efficient synthesis of 5-oxatruxene and the unusual influence of oxygen heteroatom on its physico-chemical properties

Abstract

In this paper, we describe the effective synthesis of oxatruxene and its photophysical, electrochemical and structural features that transpire when a methylene unit in a truxene core is replaced by an oxygen atom to yield 5-oxatruxene. This modification broke the C_3h symmetry and at the same time introduced a more electronegative structure as revealed by a four-fold increase in the quantum yield as compared to truxene. The derivatives of this material have great potential in optoelectronic devices and in organic photovoltaics. This proposed new synthetic method can be used to introduce other heteroatoms into the truxene system.