Synthesis, Absorption and Luminescence of a New Series of Soluble Distyrylbenzenes Featuring Cyano Substituents at the Peripheral Rings

✍ Scribed by Karl-Heinz Schweikart; Michael Hanack; Larry Lüer; Dieter Oelkrug

• Publisher: John Wiley and Sons
• Year: 2001
• Tongue: English
• Weight: 271 KB
• Volume: 2001
• Category: Article
• ISSN: 1434-193X
• DOI: 10.1002/1099-0690(200101)2001:2<293::aid-ejoc293>3.0.co;2-n

✦ Synopsis

The synthesis of a complete series of nine soluble distyrylbenzenes (DSBs) with two (2a-c) and four cyano groups (1a-f) attached to the peripheral aromatic rings is reported. They were prepared by the Wittig reaction and characterized by 1 H and 13 C NMR, FT-IR, UV/Vis, PL, EL, mass spectra, and elemental analysis. The optical properties have been studied in detail to monitor structure-luminescence relationships as a function of the position of the cyano moieties. The DSBs with cyano substituents show bathochromic shifts in [a]