BIPIRIDINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENCE ELEMENT CONTAINING THE SAME
申请人:Kimura Masato
公开号:US20100327265A1
公开(公告)日:2010-12-30
The present invention provides a new bipyridine derivative which is suitable for an electron transport material of an organic electronics element and which has bipyridyl central rings as a core, and further provides an organic electroluminescence element containing the derivative.
The bipyridine derivative is expressed by the following general formula.
(where A
1
, A
2
: represent an aromatic heterocyclic group (except for a carbazolyl group) and an aromatic hydrocarbon group and the aromatic heterocyclic group may be combined; a, b=1 or 2; Ar
1
, Ar
2
: represent a divalent or trivalent aromatic hydrocarbon group which may be substituted by hydrogen atom, an alkyl group, a cycloalkyl group, or an alkoxy group; B
1
, B
2
: represent hydrogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, an aromatic hydrocarbon group, or an aromatic heterocyclic group; and ring E
1
, ring E
2
: represent a pyridine ring, and may have hydrogen atom, an alkyl group, a cycloalkyl group, or an alkoxy group.), which is used as an electron transport material.
本发明提供了一种新的联吡啶衍生物,适用于有机电子元件的电子传输材料,并且以联吡啶中心环为核心,并进一步提供了含有该衍生物的有机电致发光元件。该联吡啶衍生物由以下通用公式表示(其中A1、A2:表示芳香杂环基团(除了羰基苯胺基团)和芳香烃基团,芳香杂环基团可以结合;a、b=1或2;Ar1、Ar2:表示可以被氢原子、烷基基团、环烷基基团或烷氧基取代的二价或三价芳香烃基团;B1、B2:表示氢原子、烷基基团、环烷基基团、烷氧基、芳香烃基团或芳香杂环基团;环E1、环E2:表示吡啶环,并且可能带有氢原子、烷基基团、环烷基基团或烷氧基),该衍生物用作电子传输材料。