US 12,666,860 B2 · Tetradentate cyclometalated platinum (II) complex based on oxygen atom linkage and containing phenylacridine and application thereof

Abstract

The present invention relates to the technical field of organic light-emitting materials, and provides a tetradentate cyclometalated platinum (II) complex based on an oxygen atom linkage and containing phenyl acridine and an application thereof. The tetradentate cyclometalated platinum (II) complex has the structure as represented by general formula (I). (I) The cyclometalated platinum (II) complex in the present invention adopts a tetradentate ligand, is high in rigidity, and can improve the light stability of a light-emitting material. At the same time, the complex molecule can strongly emit light, and therefore can be used as a light-emitting material in an OLED device.

Claims2

Dependent claims

A tetradentate cyclometalated platinum (II) complex based on oxygen atom linkage and containing phenyl acridine, wherein the tetradentate cyclometalated platinum (II) complex has a structure of general formula (I):

wherein R1, R2, R3, R4 and R5 each independently represent a mono-substitution, a di-substitution, a tri-substitution, a tetra-substitution or a non-substitution, and R1, R2, R3, R4 and R5 are each independently selected from the group consisting of hydrogen, deuterium, alkyl, aryl, cycloalkyl, heterocyclyl, heteroaryl and a combination thereof;
and optionally two or more adjacent ones of R1, R2, R3, R4 and R5 are each independently linked to form a fused ring.

Dependencies are inferred from the claim text.

Facts

Application

17/785,017Filed 10 Jun 2021

Priority

CN 202010521756.610 Jun 2020

Published

US 2024/0188417 A16 Jun 2024

Granted

23 Jun 2026

Term ends

Not estimatedThe source records don’t support an estimate.

Classification15 codes

H10K 85/346
Transition metal complexes, e.g. Rupolypyridine complexes: comprising platinum
C07D 401/14
Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a…:…
C07F 15/0086
Compounds of the platinum group: platinum compounds
C09K 11/06
Luminescent materials, e.g. electroluminescent or chemiluminescent: containing organic luminescent materials

Tetradentate cyclometalated platinum (II) complex based on oxygen atom linkage and containing phenylacridine and application thereof

Life of this patent

Tetradentate cyclometalated platinum (II) complex based on oxygen atom linkage and containing phenylacridine and application thereof

Life of this patent

Abstract

Claims2