US 2023/0068638 A1 · TETRADENTATE CYCLOMETALATED PLATINUM (II) COMPLEX BASED ON CARBOXYL COORDINATION AND CONTAINING PYRIDYL ACRIDINE, AND USE THEREOF

Abstract

The present invention relates to the technical field of organic light-emitting materials, and provides a tetradentate cyclometalated platinum (II) coordination complex based on carboxyl coordination and containing pyridyl acridine, and use thereof. The tetradentate cyclometalated platinum (II) coordination complex has the structure of the general formula (I): In the present invention, the tetradentate cyclometalated platinum (II) coordination complex includes a tetradentate ligand containing a strong-field ligand of an oxygen negative ion, with strong coordination capability and high rigidity, which can improve the quantum efficiency and photostability.

Claims2

Dependent claims

A tetradentate cyclometalated platinum (II) coordination complex based on carboxyl coordination and containing pyridyl acridine, wherein the tetradentate cyclometalated platinum (II) coordination complex has the structure of the general formula (I):

wherein each of R1, R2, R3, and R4 independently represents mono-, di-, tri-, tetra-substitution, or no substitution, and R1, R2, R3, and R4 are each independently hydrogen, deuterium, alkyl, aryl, cycloalkyl, heterocyclyl, heteroaryl, or a combination thereof;
and two or more adjacent R1, R2, R3, and R4 are each independently or selectively linked to form a fused ring.

Dependencies are inferred from the claim text.

Facts

Application

17/799,337Filed 10 Jun 2021

Priority

CN 202010522102.510 Jun 2020

Published

2 Mar 2023

Term ends

Not estimatedThe source records don’t support an estimate.

Classification11 codes

C09K 11/06
Luminescent materials, e.g. electroluminescent or chemiluminescent: containing organic luminescent materials
C07F 15/0086
Compounds of the platinum group: platinum compounds
H10K 85/346
Transition metal complexes, e.g. Rupolypyridine complexes: comprising platinum
C09K 2211/1029
Characterised by ligands: containing one nitrogen atom as the heteroatom

Tetradentate cyclometalated platinum (ii) complex based on carboxyl coordination and containing pyridyl acridine, and use thereof

Life of this patent

Tetradentate cyclometalated platinum (ii) complex based on carboxyl coordination and containing pyridyl acridine, and use thereof

Life of this patent

Abstract

Claims2