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Chem. Commun., 2005, 5766 - 5768, DOI: 10.1039/b511208g

Poly(9,9-dialkyl-3,6-dibenzosilole)—a high energy gap host for phosphorescent light emitting devices

Khai Leok Chan, Scott E. Watkins, Chris S. K. Mak, Mary J. McKiernan, Carl R. Towns, Sofia I. Pascu and Andrew B. Holmes

The preparation of the 3,6-disubstituted dibenzosilole monomers 4, 5 and 10 by two different routes is described; Suzuki copolymerisation afforded poly(9,9-dioctyl-3,6-dibenzosilole) 11 which has a sufficiently high triplet energy (2.55 eV) to function as a host for green electrophosphorescent emitters.

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