Poly(4,5,9,10-tetrahydropyrene-2,7-diyl) derivatives and their use as electroluminescence materials

US5728480A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Roland Stern · Wiesbaden, DE
• Donald Lupo · Frankfurt am Main, DE
• Josef Salbeck · Kelkheim, DE
• Hermann Schenk · Hofheim, DE
• Thomas Stehlin · Kriftel, DE
• Klaus Müllen
• Martin Kreyenschmidt · Löhne, DE
• Ullrich Scherf · Golm, DE

Key dates

• Filing date: Aug 30, 1995
• Grant date: Mar 17, 1998
• Expiry date: Aug 30, 2015

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31678
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Poly(4,5,9,10-tetrahydropyrene-2,7-diyl) derivatives of the formula (I) ##STR1## where the symbols R.sup.1 to R.sup.4 have the following meanings: R.sup.1, R.sup.2, R.sup.3, R.sup.4 are identically or variously H, a straight-chain or branched alkyl chain containing 1 to 22 carbon atoms, it being possible for one or more nonadjacent CH.sub.2 groups also to be replaced by --O--, --COO--, --OOC-- and/or phenylene, aryl or aryloxy groups, it being possible for the aromatic to be substituted by C.sub.1 -C.sub.22 -alkyl, C.sub.1 -C.sub.22 -alkoxy, Br, Cl, F, CN, and/or NO.sub.2, Br, Cl, F, CN, NO.sub.2, or carboalkoxy containing 2 to 23 carbon atoms; n is 10 to 150, are suitable as electroluminescence materials.