申请人:CYNORA GMBH
公开号:US10651394B2
公开(公告)日:2020-05-12
The invention relates to purely organic molecules according to formula A without metal center and their use as emitters in organic light-emitting diodes (OLEDs) and in other optoelectronic devices
with
Y is independently selected from the group consisting of C, PR, S, and S(═O);
W is independently selected from the group consisting of C(CN)2, NR, O, and S;
X is selected from the group consisting of CR2, C═C(CN)2, NR, O, and S;
Ar is a substituted aryl or heteroaryl group with 5 to 40 aromatic ring atoms, which is substituted with m same or different radicals R* and with n same or different donor groups D with electron-donating properties, wherein m+n equals the number of substitutable ring atoms and wherein D comprises a structure of formula I:
wherein
A and B are independently selected from the group consisting of CRR′, CR, NR, and N, wherein there is a single of a double bond between A and B and a single or a double bond between B and Z;
Z is a direct bond or a divalent organic bridge group selected from the group consisting of a substituted or unsubstituted C1-C9-alkylene group, C2-C8-alkenylene group, C2-C8-alkynylene or arylene group or a combination of these, —CRR′, —C═CRR′, —C═NR, —NR—, —O—, —SiRR′—, —S—, —S(O)—, —S(O)2—, O-interrupted substituted or unsubstituted C1-C9-alkylene, C2-C8-alkenylene, C2-C8-alkynylene or arylene groups, and phenyl or substituted phenyl units; wherein the waved line indicates the position over which D is bound to Ar.
本发明涉及符合式 A 的不含金属中心的纯有机分子,以及它们在有机发光二极管 (OLED)和其他光电设备中作为发射器的用途。
与
Y 独立地选自由 C、PR、S 和 S(═O)组成的组;
W 独立地选自 C(CN)2、NR、O 和 S 所组成的组;
X 选自 CR2、C═C(CN)2、NR、O 和 S 所组成的组;
Ar 是具有 5 至 40 个芳香环原子的取代芳基或杂芳基,该芳香环原子被 m 个相同或不同的基团 R* 和 n 个相同或不同的具有电子供体性质的供体基团 D 所取代,其中 m+n 等于可取代的环原子数,且 D 包含式 I 结构:
在其中
A 和 B 独立地选自由 CRR′、CR、NR 和 N 组成的组,其中 A 和 B 之间有单键或双键,B 和 Z 之间有单键或双键;
Z是直接键或二价有机桥基,选自取代或未取代的C1-C9-烯基、C2-C8-烯基、C2-C8-炔基或芳烯基或这些基团的组合、-CRR′、-C═CRR′、-C═NR、-NR-、-O-、-SiRR′-、-S-、-S(O)-、-S(O)2-、O-间断取代或未取代的 C1-C9-烯烃基、C2-C8-烯烃基、C2-C8-炔烃基或芳基,以及苯基或取代苯基单元;其中波浪线表示 D 与 Ar 结合的位置。