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Syntheses and Structures of Novel Heteroarene-Fused Coplanar π-Conjugated Chromophores

2006; American Chemical Society; Volume: 8; Issue: 22 Linguagem: Inglês

10.1021/ol061791y

1523-7060

Ken‐Tsung Wong, Teng‐Chih Chao, Liang‐Chen Chi, Yingying Chu, A. Balaiah, Shih‐Feng Chiu, Yi‐Hung Liu, Yu Wang,

Organic Light-Emitting Diodes Research

We have synthesized a series of novel coplanar chromophores in which heteroarenes, namely, thiophene, benzothiophene, and carbazole, were fused to neighboring phenylene ring(s) through intramolecular annulation via sp(3)-hybridized carbon atoms bearing two p-tolyl groups as peripheral substituents. The molecular configurations of the pi-conjugated backbones were determined by X-ray crystallographic analysis; the heteroarene-fused molecular frameworks of these novel molecules exhibit nearly coplanar conformations. [structure: see text]