IP Library Granted Patent US 12,545,678
Granted Patent B2
US 12,545,678 · App. 17/470,092 · Granted Feb 10, 2026

Blue thermally activated delayed fluorescent emitters and hosts based on functionalized imidazolyl groups

Inventors: Jian Li (Tempe, AZ); Jiang Wu (Chandler, AZ)
Assignee: ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZON STATE UNIVERSITY
C07D471/14C07D471/22C07D491/147C07D491/22C07D495/14C07D495/22H10K85/6572C07D493/14C07D493/22C07D495/04H05K2201/10106
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Quick Facts
Patent No.
US 12,545,678
App. No.
17/470,092
Granted
Feb 10, 2026
Kind
B2
Abstract

Compounds of General Formula I may act as thermally activated delayed fluorescent emitters in organic electroluminescent devices. Compounds of General Formula I have donor and acceptor groups part of the same conjugated system. Devices incorporating compounds of General Formula I may have higher EQE and longer material lifetimes.

Claims (90)

1 . A compound of General Formula I:

wherein:

Y 1a , Y 1b , Y 1c , Y 2a Y 2b , Y 2c , and Y 2d each independently represents C or N;

C and E each represent N;

each A, B, and D independently represent C or N;

each of Y 1 and Y 2 is independently absent or present, valency permitting;

Y 1 and Y 2 independently represent hydrogen, deuterium, halogen, hydroxyl, thiol, nitro, cyano, nitrile, isonitrile, sulfinyl, mercapto, sulfo, carboxyl, hydrazino; substituted or unsubstituted: aryl, cycloalkyl, cycloalkenyl, heterocyclyl, heteroaryl, alkyl, alkenyl, alkynyl, amino, monoalkylamino, dialkylamino, monoarylamino, diarylamino, alkoxy, aryloxy, haloalkyl, aralkyl, ester, alkoxycarbonyl, acylamino, alkoxycarbonylamino, aryloxycarbonylamino, sulfonylamino, sulfamoyl, carbamoyl, alkylthio, ureido, phosphoramide, silyl, or polymeric; or any combination thereof; or Y 1 and Y 2 may together form a ring;

R 1 and R 2 are independently absent or present, valency permitting, and each R 1 and R 2 independently represents hydrogen, deuterium, halogen, hydroxyl, thiol, nitro, cyano, nitrile, isonitrile, sulfinyl, mercapto, sulfo, carboxyl, hydrazino; substituted or unsubstituted: aryl, cycloalkyl, cycloalkenyl, heterocyclyl, heteroaryl, alkyl, alkenyl, alkynyl, amino, monoalkylamino, dialkylamino, monoarylamino, diarylamino, alkoxy, aryloxy, haloalkyl, aralkyl, ester, alkoxycarbonyl, acylamino, alkoxycarbonylamino, aryloxycarbonylamino, sulfonylamino, sulfamoyl, carbamoyl, alkylthio, ureido, phosphoramide, silyl, or polymeric; or any combination thereof; any two adjacent R 1 and R 2 may together form a ring;

provided that at least two adjacent R 2 together represent a group of Formula A:

wherein:

waved lines indicate bonds to the respective Y 2a , Y 2b , Y 2c , or Y 2d ;

Y 3a Y 3b , Y 3c , and Y 3d each independently represents C or N;

X 1 independently represents C, N, Si, O, S, Ge, P, As, Se, B, Al, or Bi, or if valency permits, X 1 independently represents CR 4 , SiR 4 , GeR 4 , NR 4 , P═O, As═O, B, BR 4 , AlR 4 , Bi═O, CR 4 R 5 , C═O, SiR 4 R 5 , GeR 4 R 5 , PR 4 , PR 4 R 5 , R 4 P═O, AsR 4 , R 4 As═O, S═O, SO 2 , Se═O, SeO 2 , BR 4 , BR 4 R 5 , AlR 4 , AlR 4 R 5 , R 4 Bi═O, or BiR 4 ;

R 3 , R 4 , and R 5 are independently absent or present, valency permitting, and each R 3 , R 4 and R 5 independently represents hydrogen, deuterium, halogen, hydroxyl, thiol, nitro, cyano, nitrile, isonitrile, sulfinyl, mercapto, sulfo, carboxyl, hydrazino; substituted or unsubstituted: aryl, cycloalkyl, cycloalkenyl, heterocyclyl, heteroaryl, alkyl, alkenyl, alkynyl, amino, monoalkylamino, dialkylamino, monoarylamino, diarylamino, alkoxy, aryloxy, haloalkyl, aralkyl, ester, alkoxycarbonyl, acylamino, alkoxycarbonylamino, aryloxycarbonylamino, sulfonylamino, sulfamoyl, carbamoyl, alkylthio, ureido, phosphoramide, silyl, or polymeric; or any combination thereof; any two of R 1 , R 2 , R 3 , R 4 , and R 5 may together form a ring;

each n is an integer, valency permitting; and

wherein at least two adjacent R 3 together represent a group of Formula B:

wherein waved lines indicate bonds to the respective Y 3a , Y 3b , Y 3c , and Y 3d ;

Y 4a , Y 4b , Y 4c , and Y 4d each independently represents C or N;

X 2 independently represents C, N, Si, O, S, Ge, P, As, Se, B, Al, or Bi, or if valency permits, X 2 independently represents CR 7 , SiR 7 , GeR 7 , NR 7 , P═O, As═O, B, BR 7 , AlR 7 , Bi═O, CR 7 R 8 , C═O, SiR 7 R 8 , GeR 7 R 8 , PR 7 , PR 7 R 8 , R 7 P═O, AsR 7 , R 7 As═O, S═O, SO 2 , Se═O, SeO 2 , BR 7 , BR 7 R 8 , AlR 7 , AlR 7 R 8 , R 7 Bi═O, or BiR 7 ;

each of R 6 , R 7 , and R 8 is independently absent or present as a single substituent or multiple substituents, valency permitting, and each of R 6 , R 7 , and R 8 independently represents hydrogen, deuterium, halogen, hydroxyl, thiol, nitro, cyano, nitrile, isonitrile, sulfinyl, mercapto, sulfo, carboxyl, hydrazino: substituted or unsubstituted: aryl, cycloalkyl, cycloalkenyl, heterocyclyl, heteroaryl, alkyl, alkenyl, alkynyl, amino, monoalkylamino, dialkylamino, monoarylamino, diarylamino, alkoxy, aryloxy, haloalkyl, aralkyl, ester, alkoxycarbonyl, acylamino, alkoxycarbonylamino, aryloxycarbonylamino, sulfonylamino, sulfamoyl, carbamoyl, alkylthio, ureido, phosphoramide, silyl, or polymeric; or any combination thereof; any two of R 6 , R 7 , and R 8 may together form a ring; and

n is an integer, valency permitting.

2 . The compound of claim 1 , wherein the compound is represented by General Formula 1:

wherein, in General Formula 1:

Y 1a , Y 1b , Y 1c , Y 2a , Y 2b , Y 3a Y 3b Y 3c , and Y 3d each independently represents C or N;

C and E each represent N;

each A, B, and D independently represent C or N;

X 1 independently represents C, N, Si, O, S, Ge, P, As, Se, B, Al, or Bi, or if valency permits, X 1 independently represents CR 4 , SiR 4 , GeR 4 , NR 4 , P═O, As═O, B, BR 4 , AlR 4 , Bi═O, CR 4 R 5 , C═O, SiR 4 R 5 , GeR 4 R 5 , PR 4 , PR 4 R 5 , R 4 , P═O, AsR 4 , R 4 As═O, S═O, SO 2 , Se═O, SeO 2 , BR 4 , BR 4 R 5 , AlR 4 , AlR 4 R 5 , R 4 Bi═O, or BiR 4 ;

each of Y 1 and Y 2 is independently absent or present, valency permitting; Y 1 and Y 2 independently represent hydrogen, deuterium, halogen, hydroxyl, thiol, nitro, cyano, nitrile, isonitrile, sulfinyl, mercapto, sulfo, carboxyl, hydrazino; substituted or unsubstituted: aryl, cycloalkyl, cycloalkenyl, heterocyclyl, heteroaryl, alkyl, alkenyl, alkynyl, amino, monoalkylamino, dialkylamino, monoarylamino, diarylamino, alkoxy, aryloxy, haloalkyl, aralkyl, ester, alkoxycarbonyl, acylamino, alkoxycarbonylamino, aryloxycarbonylamino, sulfonylamino, sulfamoyl, carbamoyl, alkylthio, ureido, phosphoramide, silyl, or polymeric; or any combination thereof; or Y 1 and Y 2 may together form a ring;

each of R 1 , R 2 , R 3 , R 4 , and R 5 is independently absent or present, valency permitting, and each of R 1 , R 2 , R 3 , R 4 , and R 5 independently represents hydrogen, deuterium, halogen, hydroxyl, thiol, nitro, cyano, nitrile, isonitrile, sulfinyl, mercapto, sulfo, carboxyl, hydrazino; substituted or unsubstituted: aryl, cycloalkyl, cycloalkenyl, heterocyclyl, heteroaryl, alkyl, alkenyl, alkynyl, amino, monoalkylamino, dialkylamino, monoarylamino, diarylamino, alkoxy, aryloxy, haloalkyl, aralkyl, ester, alkoxycarbonyl, acylamino, alkoxycarbonylamino, aryloxycarbonylamino, A sulfonylamino, sulfamoyl, carbamoyl, alkylthio, ureido, phosphoramide, silyl, or polymeric; or any combination thereof; any two of R 1 , R 2 , R 3 , R 4 , and R 5 may together form a ring; and

n is an integer, valency permitting.

3 . The compound of claim 1 , wherein the compound is represented by General Formula 2:

wherein, in General Formula 2:

Y 1a , Y 1b , Y 1c , Y 2a Y 2b Y 3a Y 3b Y 3c , and Y 3d each independently represents C or N;

C and E each represent N;

each A, B, and D independently represent C or N;

X 1 independently represents C, N, Si, O, S, Ge, P, As, Se, B, Al, or Bi, or if valency permits, X 1 independently represents CR 4 , SiR 4 , GeR 4 , NR 4 , P═O, As═O, B, BR 4 , AlR 4 , Bi═O, CR 4 R 5 , C═O, SiR 4 R 5 , GeR 4 R 5 , PR 4 , PR 4 R 5 , R 4 , P═O, AsR 4 , R 4 As═O, S═O, SO 2 , Se═O, SeO 2 , BR 4 , BR 4 R 5 , AlR 4 , AlR 4 R 5 , R 4 Bi═O, or BiR 4 ;

each of Y 1 and Y 2 is independently absent or present, valency permitting; Y 1 and Y 2 independently represent hydrogen, deuterium, halogen, hydroxyl, thiol, nitro, cyano, nitrile, isonitrile, sulfinyl, mercapto, sulfo, carboxyl, hydrazino; substituted or unsubstituted: aryl, cycloalkyl, cycloalkenyl, heterocyclyl, heteroaryl, alkyl, alkenyl, alkynyl, amino, monoalkylamino, dialkylamino, monoarylamino, diarylamino, alkoxy, aryloxy, haloalkyl, aralkyl, ester, alkoxycarbonyl, acylamino, alkoxycarbonylamino, aryloxycarbonylamino, sulfonylamino, sulfamoyl, carbamoyl, alkylthio, ureido, phosphoramide, silyl, or polymeric; or any combination thereof; or Y 1 and Y 2 may together form a ring;

each of R 1 , R 2 , R 3 , R 4 , and R 5 is independently absent or present, valency permitting, and each of R 1 , R 2 , R 3 , R 4 , and R 5 independently represents hydrogen, deuterium, halogen, hydroxyl, thiol, nitro, cyano, nitrile, isonitrile, sulfinyl, mercapto, sulfo, carboxyl, hydrazino; substituted or unsubstituted: aryl, cycloalkyl, cycloalkenyl, heterocyclyl, heteroaryl, alkyl, alkenyl, alkynyl, amino, monoalkylamino, dialkylamino, monoarylamino, diarylamino, alkoxy, aryloxy, haloalkyl, aralkyl, ester, alkoxycarbonyl, acylamino, alkoxycarbonylamino, aryloxycarbonylamino, sulfonylamino, sulfamoyl, carbamoyl, alkylthio, ureido, phosphoramide, silyl, or polymeric; or any combination thereof; any two of R 1 , R 2 , R 3 , R 4 , and R 5 may together form a ring; and

n is an integer, valency permitting.

4 . The compound of claim 1 , wherein the compound is represented by General Formula 3:

wherein, in General Formula 3:

Y 1a , Y 1b , Y 1c , Y 2a , Y 2d , Y 3a , Y 3b , Y 3c and Y 3d each independently represents C or N;

C and E each represent N;

each A, B, and D independently represent C or N;

X 1 independently represents C, N, Si, O, S, Ge, P, As, Se, B, Al, or Bi, or if valency permits, X 1 independently represents CR 4 , SiR 4 , GeR 4 , NR 4 , P═O, As═O, B, BR 4 , AlR 4 , Bi═O, CR 4 R 5 , C═O, SiR 4 R 5 , GeR 4 R 5 , PR 4 , PR 4 R 5 , R 4 , P═O, AsR 4 , R 4 As═O, S═O, SO 2 , Se═O, SeO 2 , BR 4 , BR 4 R 5 , AlR 4 , AlR 4 R 5 , R 4 Bi═O, or BiR 4 ;

each of Y 1 and Y 2 is independently absent or present, valency permitting; Y 1 and Y 2 independently represent hydrogen, deuterium, halogen, hydroxyl, thiol, nitro, cyano, nitrile, isonitrile, sulfinyl, mercapto, sulfo, carboxyl, hydrazino; substituted or unsubstituted: aryl, cycloalkyl, cycloalkenyl, heterocyclyl, heteroaryl, alkyl, alkenyl, alkynyl, amino, monoalkylamino, dialkylamino, monoarylamino, diarylamino, alkoxy, aryloxy, haloalkyl, aralkyl, ester, alkoxycarbonyl, acylamino, alkoxycarbonylamino, aryloxycarbonylamino, sulfonylamino, sulfamoyl, carbamoyl, alkylthio, ureido, phosphoramide, silyl, or polymeric; or any combination thereof; or Y 1 and Y 2 may together form a ring;

each of R 1 , R 2 , R 3 , R 4 , and R 5 is independently absent or present, valency permitting, and each of R 1 , R 2 , R 3 , R 4 , and R 5 independently represents hydrogen, deuterium, halogen, hydroxyl, thiol, nitro, cyano, nitrile, isonitrile, sulfinyl, mercapto, sulfo, carboxyl, hydrazino; substituted or unsubstituted: aryl, cycloalkyl, cycloalkenyl, heterocyclyl, heteroaryl, alkyl, alkenyl, alkynyl, amino, monoalkylamino, dialkylamino, monoarylamino, diarylamino, alkoxy, aryloxy, haloalkyl, aralkyl, ester, alkoxycarbonyl, acylamino, alkoxycarbonylamino, aryloxycarbonylamino, sulfonylamino, sulfamoyl, carbamoyl, alkylthio, ureido, phosphoramide, silyl, or polymeric; or any combination thereof; any two of R 1 , R 2 , R 3 , R 4 , and R 5 may together form a ring; and

n is an integer, valency permitting.

5 . The compound of claim 1 , wherein the compound is represented by General Formula 4:

wherein, in General Formula 4:

Y 1a , Y 1b , Y 1c , Y 2a , Y 2d , Y 3a , Y 3b , Y 3c and Y 3d each independently represents C or N;

C and E each represent N;

each A, B, and D independently represent C or N;

X 1 independently represents C, N, Si, O, S, Ge, P, As, Se, B, Al, or Bi, or if valency permits, X 1 independently represents CR 4 , SiR 4 , GeR 4 , NR 4 , P═O, As═O, B, BR 4 , AlR 4 , Bi═O, CR 4 R 5 , C═O, SiR 4 R 5 , GeR 4 R 5 , PR 4 , PR 4 R 5 , R 4 , P═O, AsR 4 , R 4 As═O, S═O, SO 2 , Se═O, SeO 2 , BR 4 , BR 4 R 5 , AlR 4 , AlR 4 R 5 , R 4 Bi═O, or BiR 4 ;

each of Y 1 and Y 2 is independently absent or present, valency permitting; Y 1 and Y 2 independently represent hydrogen, deuterium, halogen, hydroxyl, thiol, nitro, cyano, nitrile, isonitrile, sulfinyl, mercapto, sulfo, carboxyl, hydrazino; substituted or unsubstituted: aryl, cycloalkyl, cycloalkenyl, heterocyclyl, heteroaryl, alkyl, alkenyl, alkynyl, amino, monoalkylamino, dialkylamino, monoarylamino, diarylamino, alkoxy, aryloxy, haloalkyl, aralkyl, ester, alkoxycarbonyl, acylamino, alkoxycarbonylamino, aryloxycarbonylamino, sulfonylamino, sulfamoyl, carbamoyl, alkylthio, ureido, phosphoramide, silyl, or polymeric; or any combination thereof; or Y 1 and Y 2 may together form a ring;

each of R 1 , R 2 , R 3 , R 4 , and R 5 is independently absent or present, valency permitting, and each of R 1 , R 2 , R 3 , R 4 , and R 5 independently represents hydrogen, deuterium, halogen, hydroxyl, thiol, nitro, cyano, nitrile, isonitrile, sulfinyl, mercapto, sulfo, carboxyl, hydrazino; substituted or unsubstituted: aryl, cycloalkyl, cycloalkenyl, heterocyclyl, heteroaryl, alkyl, alkenyl, alkynyl, amino, monoalkylamino, dialkylamino, monoarylamino, diarylamino, alkoxy, aryloxy, haloalkyl, aralkyl, ester, alkoxycarbonyl, acylamino, alkoxycarbonylamino, aryloxycarbonylamino, sulfonylamino, sulfamoyl, carbamoyl, alkylthio, ureido, phosphoramide, silyl, or polymeric; or any combination thereof; any two of R 1 , R 2 , R 3 , R 4 , and R 5 may together form a ring; and

n is an integer, valency permitting.

6 . The compound of claim 1 , wherein the compound is represented by General Formula 5:

wherein, in General Formula 5:

Y 1a , Y 1b , Y 1c , Y 2c , Y 2d , Y 3a , Y 3b , Y 3c and Y 3d each independently represents C or N;

C and E each represent N;

each A, B, and D independently represent C or N;

X 1 independently represents C, N, Si, O, S, Ge, P, As, Se, B, Al, or Bi, or if valency permits, X 1 independently represents CR 4 , SiR 4 , GeR 4 , NR 4 , P═O, As═O, B, BR 4 , AlR 4 , Bi═O, CR 4 R 5 , C═O, SiR 4 R 5 , GeR 4 R 5 , PR 4 , PR 4 R 5 , R 4 , P═O, AsR 4 , R 4 As═O, S═O, SO 2 , Se═O, SeO 2 , BR 4 , BR 4 R 5 , AlR 4 , AlR 4 R 5 , R 4 Bi═O, or BiR 4 ;

each of Y 1 and Y 2 is independently absent or present, valency permitting; Y 1 and Y 2 independently represent hydrogen, deuterium, halogen, hydroxyl, thiol, nitro, cyano, nitrile, isonitrile, sulfinyl, mercapto, sulfo, carboxyl, hydrazino; substituted or unsubstituted: aryl, cycloalkyl, cycloalkenyl, heterocyclyl, heteroaryl, alkyl, alkenyl, alkynyl, amino, monoalkylamino, dialkylamino, monoarylamino, diarylamino, alkoxy, aryloxy, haloalkyl, aralkyl, ester, alkoxycarbonyl, acylamino, alkoxycarbonylamino, aryloxycarbonylamino, sulfonylamino, sulfamoyl, carbamoyl, alkylthio, ureido, phosphoramide, silyl, or polymeric; or any combination thereof; or Y 1 and Y 2 may together form a ring;

each of R 1 , R 2 , R 3 , R 4 , and R 5 is independently absent or present, valency permitting, and each of R 1 , R 2 , R 3 , R 4 , and R 5 independently represents hydrogen, deuterium, halogen, hydroxyl, thiol, nitro, cyano, nitrile, isonitrile, sulfinyl, mercapto, sulfo, carboxyl, hydrazino; substituted or unsubstituted: aryl, cycloalkyl, cycloalkenyl, heterocyclyl, heteroaryl, alkyl, alkenyl, alkynyl, amino, monoalkylamino, dialkylamino, monoarylamino, diarylamino, alkoxy, aryloxy, haloalkyl, aralkyl, ester, alkoxycarbonyl, acylamino, alkoxycarbonylamino, aryloxycarbonylamino, sulfonylamino, sulfamoyl, carbamoyl, alkylthio, ureido, phosphoramide, silyl, or polymeric; or any combination thereof; any two of R 1 , R 2 , R 3 , R 4 , and R 5 may together form a ring; and

n is an integer, valency permitting.

7 . The compound of claim 1 , wherein the compound is represented by General Formula 6:

wherein, in General Formula 6:

Y 1a , Y 1b , Y 1c , Y 2c , Y 2d , Y 3a , Y 3b , Y 3c and Y 3d each independently represents C or N;

C and E each represent N;

each A, B, and D independently represent C or N;

X 1 independently represents C, N, Si, O, S, Ge, P, As, Se, B, Al, or Bi, or if valency permits, X 1 independently represents CR 4 , SiR 4 , GeR 4 , NR 4 , P═O, As═O, B, BR 4 , AlR 4 , Bi═O, CR 4 R 5 , C═O, SiR 4 R 5 , GeR 4 R 5 , PR 4 , PR 4 R 5 , R 4 , P═O, AsR 4 , R 4 As═O, S═O, SO 2 , Se═O, SeO 2 , BR 4 , BR 4 R 5 , AlR 4 , AlR 4 R 5 , R 4 Bi═O, or BiR 4 ;

each of Y 1 and Y 2 is independently absent or present, valency permitting; Y 1 and Y 2 independently represent hydrogen, deuterium, halogen, hydroxyl, thiol, nitro, cyano, nitrile, isonitrile, sulfinyl, mercapto, sulfo, carboxyl, hydrazino; substituted or unsubstituted: aryl, cycloalkyl, cycloalkenyl, heterocyclyl, heteroaryl, alkyl, alkenyl, alkynyl, amino, monoalkylamino, dialkylamino, monoarylamino, diarylamino, alkoxy, aryloxy, haloalkyl, aralkyl, ester, alkoxycarbonyl, acylamino, alkoxycarbonylamino, aryloxycarbonylamino, sulfonylamino, sulfamoyl, carbamoyl, alkylthio, ureido, phosphoramide, silyl, or polymeric; or any combination thereof; or Y 1 and Y 2 may together form a ring;

each of R 1 , R 2 , R 3 , R 4 , and R 5 is independently absent or present, valency permitting, and each of R 1 , R 2 , R 3 , R 4 , and R 5 independently represents hydrogen, deuterium, halogen, hydroxyl, thiol, nitro, cyano, nitrile, isonitrile, sulfinyl, mercapto, sulfo, carboxyl, hydrazino; substituted or unsubstituted: aryl, cycloalkyl, cycloalkenyl, heterocyclyl, heteroaryl, alkyl, alkenyl, alkynyl, amino, monoalkylamino, dialkylamino, monoarylamino, diarylamino, alkoxy, aryloxy, haloalkyl, aralkyl, ester, alkoxycarbonyl, acylamino, alkoxycarbonylamino, aryloxycarbonylamino, sulfonylamino, sulfamoyl, carbamoyl, alkylthio, ureido, phosphoramide, silyl, or polymeric; or any combination thereof; any two of R 1 , R 2 , R 3 , R 4 , and R 5 may together form a ring; and

n is an integer, valency permitting.

8 . The compound of claim 1 , wherein the compound is represented by one of the following General Formulae:

9 . The compound of claim 1 , wherein two adjacent R 2 together represent a group of Formula A and two adjacent R 2 together represent a group of Formula B:

wherein waved lines indicate bonds to the respective Y 2a and Y 2b , or Y 2c and Y 2d ;

Y 4a , Y 4b , Y 4c , and Y 4d each independently represents C or N;

X 2 independently represents C, N, Si, O, S, Ge, P, As, Se, B, Al, or Bi, or if valency permits, X 2 independently represents CR 7 , SiR 7 , GeR 7 , NR 7 , P═O, As═O, B, BR 7 , AlR 7 , Bi═O, CR 7 R 8 , C═O, SiR 7 R 8 , GeR 7 R 8 , PR 7 , PR 7 R 8 , R 7 P═O, AsR 7 , R 7 As═O, S═O, SO 2 , Se═O, SeO 2 , BR 7 , BR 7 R 8 , AlR 7 , AlR 7 R 8 , R 7 Bi═O, or BiR 7 ;

each of R 6 , R 7 , and R 8 is independently absent or present as a single substituent or multiple substituents, valency permitting, and each of R 6 , R 7 , and R 8 independently represents hydrogen, deuterium, halogen, hydroxyl, thiol, nitro, cyano, nitrile, isonitrile, sulfinyl, mercapto, sulfo, carboxyl, hydrazino; substituted or unsubstituted: aryl, cycloalkyl, cycloalkenyl, heterocyclyl, heteroaryl, alkyl, alkenyl, alkynyl, amino, monoalkylamino, dialkylamino, monoarylamino, diarylamino, alkoxy, aryloxy, haloalkyl, aralkyl, ester, alkoxycarbonyl, acylamino, alkoxycarbonylamino, aryloxycarbonylamino, sulfonylamino, sulfamoyl, carbamoyl, alkylthio, ureido, phosphoramide, silyl, or polymeric; or any combination thereof; any two of R 6 , R 7 , and R 8 may together form a ring; and

n is an integer, valency permitting.

10 . The compound of claim 9 , wherein the compound is represented by one of the following General Formulae:

11 . An organic light emitting diode comprising the compound of claim 9 .

12 . A light emitting device comprising the light emitting diode of claim 11 .

13 . An organic light emitting diode comprising the compound of claim 1 .

14 . A light emitting device comprising the light emitting diode of claim 13 .

15 . A compound represented by one of the following structures:

16 . A light emitting device comprising the light emitting diode of claim 15 .

17 . An organic light emitting diode comprising the compound of claim 16 .

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 8, 2024
From: LI, JIAN; WU, JIANG
To: ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY
Reel/Frame 066047/0782 →
CONFIRMATORY LICENSE Recorded Oct 8, 2021
From: ARIZONA STATE UNIVERSITY-TEMPE CAMPUS
To: UNITED STATES DEPARTMENT OF ENERGY
Reel/Frame 057758/0779 →
Continuity (2)
Provisional Application 63075924 · Sep 9, 2020
Related Publication 20220073517A1 · Mar 10, 2022
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