# US 9,040,702 B1 · Luminescent platinum(II) complexes with biazolate chelates

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- Number: US 9,040,702 B1
- Document ID: US9040702B1
- Status: Granted
- Kind: B1
- Application number: 14/277,117
- Filed: 2014-05-14
- Granted: 2015-05-26
- Earliest claimed: 2014-01-07
- Assignees: National Tsing Hua University
- Applicants: National Tsing Hua University
- Inventors: Yun Chi; Hsiu-Hsuan Yeh
- Web page: https://patentgrep.com/patent/US9040702B1

## CPC

- H10K 85/346: {comprising platinum}
- C07F 15/0093: {without a metal-carbon linkage}
- C09K 11/06: containing organic luminescent materials
- C09K 2211/1007: Non-condensed systems
- C09K 2211/1029: containing one nitrogen atom as the heteroatom
- C09K 2211/1044: containing two nitrogen atoms as heteroatoms
- C09K 2211/185: of the platinum group, i.e. Os, Ir, Pt, Ru, Rh or Pd
- H10K 50/11: characterised by the electroluminescent [EL] layers
- H10K 2101/10: Triplet emission
- H10K 2101/40: Interrelation of parameters between multiple constituent active layers or sublayers, e.g. HOMO values in adjacent layers
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- C07F: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM (metal-containing porphyrins C07D487/22)
- C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE

## Abstract

A platinum complex of a formula (I): where R1 and R2 are each fluoroalkyl, X is C—H or nitrogen, and L1 is a bidentate, nitrogen-containing heteroaromatic ligand.

## Claims

### Claim 1

A platinum complex of a formula (I):
where
R1 and R2 are each fluoroalkyl,
X is C—H or nitrogen, and
L1 is a bidentate, nitrogen-containing heteroaromatic ligand.

### Claim 2 (depends on 1)

The platinum complex of claim 1, wherein L1 is

### Claim 3 (depends on 1)

The platinum complex of claim 1, wherein X is C—H.

### Claim 4 (depends on 3)

The platinum complex of claim 3, wherein R1 and R2 are each independently trifluoromethyl or heptafluoropropyl.

### Claim 5 (depends on 4)

The platinum complex of claim 4, wherein L1 is

### Claim 6 (depends on 1)

The platinum complex of claim 1, wherein X is nitrogen.

### Claim 7 (depends on 6)

The platinum complex of claim 6, wherein R1 and R2 are each independently trifluoromethyl or heptafluoropropyl.

### Claim 8 (depends on 7)

The platinum complex of claim 7, wherein L1 is