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Review | Regular issue | Vol 75, No. 10, 2008, pp.2381-2413
Published online, 28th March, 2008
DOI: 10.3987/REV-08-631
Chemistry and Applications of 4,5-Diazafluorenes

Katsuhiko Ono* and Katsuhiro Saito

*Department of Life and Material Engineering, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan

Abstract

The synthesis, molecular structures, reactions, and properties of 4,5-diazafluorene derivatives have been studied because of their potential applications in organic devices. These compounds have similarities to 2,2’-bipyridyl and 1,10-phenanthroline derivatives. They also exhibit unique reactivities and properties different from these compounds due to the fluorene moieties. The applications of 4,5-diazafluorenes have been widely investigated in various research fields to afford new functional materials such as electron-transporting materials, organic emitters, emissive complexes, sensing elements, solar sensitizers, and antibiotics. This article describes the chemistry and applications of 4,5-diazafluorenes.