Abstract
A synthetic route to novel benzofuran fused silole derivatives is described and the new compounds were fully characterized. These compounds showed optical and electrochemical properties that differ from their benzothiophene analog. Preliminary results show that these derivatives can be used as blue emitters in organic light emitting devices (OLEDs) illustrating the potential of these new compounds for opto-electronic applications.
Highlights
Synthesis of heteroatomic π-conjugated systems for opto-electronic applications is a highly developed research field since two decades [1]
In the the present article, we we report systems as as
Available were used as received without further purification
Summary
Synthesis of heteroatomic π-conjugated systems for opto-electronic applications is a highly developed research field since two decades [1]. Following the successful incorporation of thiophene oligomers and polymers in opto-electronic devices, [1,2,3] new derivatives featuring B [4,5], N [6,7],. Siloles (silacyclopentadienes) found promising applications in the field of organic light emitting devices (OLEDs) [20,21,22,23]. Two main reasons explain the good behaviour of siloles in these devices. The presence of phenyl (or (hetero)-aryl) substituents in the 2,3,4,5 positions of the silole ring (derivative A, Figure 1)
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