申请人:Baumann Thomas
公开号:US09266906B2
公开(公告)日:2016-02-23
Copper(I) complexes for the emission of light with a structure according to formula A:
wherein:
M is Cu(I);
L-B-L: a neutral, bidentate ligand,
Z4-Z7: includes N or the fragment CR, with R=organic group, selected from the group consisting of: hydrogen, halogen or deuterium or groups which are bound via oxygen (—OR′″), nitrogen (—NR′″2), or phosphorous atoms (PR′″2) as well as alkyl, aryl, heteroaryl, alkenyl, alkinyl, trialkylsilyl and triarylsilyl groups or substituted alkyl, aryl, heteroaryl and alkenyl groups with substituents such as halogens or deuterium or lower alkyl groups;
X is either CR′″2 or NR′″;
Y is either O, S or NR′″;
Z8 includes the fragment CR′, with R′=O*R′″, N*R′″2 or P*R′″2, wherein the bond to the Cu atom is carried out via these groups;
R″ is a sterically demanding substituent, which inhibits a change in geometry in direction to planarization of the complex in excited state,
R′″=organic group which is selected from the group consisting of: hydrogen, halogen or deuterium, as well as alkyl, aryl, heteroaryl, alkenyl, alkinyl groups or substituted alkyl, aryl, heteroaryl and alkenyl groups with substituents such as halogens or deuterium, alkyl groups, and further generally known donor and acceptor groups
* indicates the atom which receives the complex bond; and
# indicates the atom which mediates the bond with the second chemical unit.
结构公式A表示具有发光性能的铜(I)配合物,其中:
M为Cu(I);
L-B-L为中性的双齿配体;
Z4-Z7包括N或片段CR,其中R为有机基团,选自包括氢、卤素或氘,或通过氧(—OR′″)、氮(—NR′″2)或磷原子(PR′″2)结合的基团,以及烷基、芳基、杂环芳基、烯基、炔基、三烷基硅基和三芳基硅基基团或取代烷基、芳基、杂环芳基和烯基基团,其取代基为卤素或氘或低烷基基团;
X为CR′″2或NR′″;
Y为O、S或NR′″;
Z8包括片段CR′,其中R′=O*R′″、N*R′″2或P*R′″2,其中通过这些基团与Cu原子进行键合;
R″为大体积取代基,抑制了复合物在激发态中向平面化方向的几何变化;
R′″为有机基团,选自包括氢、卤素或氘,以及烷基、芳基、杂环芳基、烯基、炔基基团或取代烷基、芳基、杂环芳基和烯基基团,其取代基为卤素或氘、烷基等,以及其他一般已知的给体和受体基团;
*表示接受配位键的原子;#表示介导与第二个化学单元之间的键合的原子。