Thermally activated delayed fluorescent material based on 9,10-dihydro-9,9-dimethylacridine analogues for prolonging device longevity
Thermally activated delayed fluorescent compounds and uses thereof are described. The thermally activated delayed fluorescent compounds are an analogues of 9,10-dihydro-9,9-dimethylacridine compounds.
1. A thermally activated delayed fluorescent compound represented by Formula I, Formula II, Formula III, or Formula IV:
wherein:
represents n acceptor moieties A, where A is a nitrogen-containing heteroaryl group, a R q MO group, where M is C, S, P, or As, or a R q SO 2 group, or any combination thereof; and n=1, 2, or 3, such that the compound includes a single acceptor moiety (A 1 ), two acceptor moieties (A 1 and A 2 ), or three acceptor moieties (A 1 , A 2 , and A 3 ), and wherein each acceptor moiety is substituted with R q ;
L 1 , and L 2 , and L 3 are each independently —CR 2 -, —CO—, or —SiR 2 -; and
R m , R n , R p , and R q each independently represent mono-, di-, tri, or tetra-substitution, valency permitting; and
each R, R m , R n , R p , and R q independently represents mono-, di-, tri, or tetra-substitution, valency permitting, and each independently represents a hydrogen atom, a deuterium atom, a halogen atom, a hydroxyl group, an —SH group, a nitro group, a cyano group, an alkyl group, a haloalkyl group, an aralkyl group, an alkenyl group, an alkynyl group, an aryl group, an amino group, a mono- or dialkylamino group, a mono- or diarylamino group, an alkoxy group, an aryloxy group, a heteroaryl group, an alkoxycarbonyl group, an alkylcarbonyloxy group, an alkoxycarbonylamino group, an aryloxycarbonylamino group, a sulfonylamino group, a sulfamoyl group, a carbamoyl group, an alkylthio group, a sulfinyl group, a ureido group, a phosphoramide group, a sulfo group, a carboxyl group, a hydrazino group, a substituted silyl group, a polymeric group, or a combination thereof;
wherein the alkyl group, haloalkyl group, aralkyl group, alkenyl group, alkynyl group, aryl group, amino group, mono- or dialkylamino group, alkoxy group, aryloxy group, and heteroaryl group is optionally substituted with one or more substituents selected from the group consisting of a deuterium atom, a halogen atom, a hydroxyl group, an SH group, a nitro group, a cyano group, an alkyl group, a haloalkyl group, an aralkyl group, an alkenyl group, an alkynyl group, an aryl group, an amino group, a mono- or dialkylamino group, a mono- or diarylamino group, an alkoxy group, an aryloxy group, a heteroaryl group, an alkoxycarbonyl group, an alkylcarbonyloxy group, an alkoxycarbonylamino group, an aryloxycarbonylamino group, a sulfonylamino group, a sulfamoyl group, a carbamoyl group, an alkylthio group, a sulfinyl group, a ureido group, a phosphoramide group, a sulfo group, a carboxyl group, a hydrazino group, a substituted silyl group, and a polymeric group;
with the proviso that when the compound is represented by Formula III, R m and R n are not pyridyl.
2. The compound of claim 1 , wherein A is:
3. The compound of claim 2 , wherein A is a nitrogen-containing heteroaryl group comprising 1 to 3 nitrogen atoms.
4. The compound of claim 1 , wherein A is
where U, U 1 , and U 2 each independently represents N or C with the proviso that when U, U 1 and U 2 are present at least one of them is N.
5. The compound of claim 4 , wherein A is
6. The compound of claim 5 , wherein the compound is:
7. The compound of claim 6 , wherein the compound is:
or
8. The compound of claim 6 , wherein the compound is:
or
9. The compound of claim 1 , wherein n is 2 and the compound has the structure selected from the group consisting of:
where:
R u represents mono-, di-, tri, or tetra-substitution, valency permitting;
and each independently represents a hydrogen atom, a deuterium atom, a halogen atom, a hydroxyl group, an —SH group, a nitro group, a cyano group, an alkyl group, a haloalkyl group, an aralkyl group, an alkenyl group, an alkynyl group, an aryl group, an amino group, a mono- or dialkylamino group, a mono- or diarylamino group, an alkoxy group, an aryloxy group, a heteroaryl group, an alkoxycarbonyl group, an alkylcarbonyloxy group, an alkoxycarbonylamino group, an aryloxycarbonylamino group, a sulfonylamino group, a sulfamoyl group, a carbamoyl group, an alkylthio group, a sulfinyl group, a ureido group, a phosphoramide group, a sulfo group, a carboxyl group, a hydrazino group, a substituted silyl group, a polymeric group, or a combination thereof;
wherein the alkyl group, haloalkyl group, aralkyl group, alkenyl group, alkynyl group, aryl group, amino group, mono- or dialkylamino group, alkoxy group, aryloxy group, and heteroaryl group is optionally substituted with one or more substituents selected from the group consisting of a deuterium atom, a halogen atom, a hydroxyl group, an SH group, a nitro group, a cyano group, an alkyl group, a haloalkyl group, an aralkyl group, an alkenyl group, an alkynyl group, an aryl group, an amino group, a mono- or dialkylamino group, a mono- or diarylamino group, an alkoxy group, an aryloxy group, a heteroaryl group, an alkoxycarbonyl group, an alkylcarbonyloxy group, an alkoxycarbonylamino group, an aryloxycarbonylamino group, a sulfonylamino group, a sulfamoyl group, a carbamoyl group, an alkylthio group, a sulfinyl group, a ureido group, a phosphoramide group, a sulfo group, a carboxyl group, a hydrazino group, a substituted silyl group, and a polymeric group.
10. The compound of claim 9 , wherein n=3, and the compound has the structure selected from the group consisting of:
where
R v represents mono-, di-, tri, or tetra-substitution, valency permitting;
and each independently represents a hydrogen atom, a deuterium atom, a halogen atom, a hydroxyl group, an —SH group, a nitro group, a cyano group, an alkyl group, a haloalkyl group, an aralkyl group, an alkenyl group, an alkynyl group, an aryl group, an amino group, a mono- or dialkylamino group, a mono- or diarylamino group, an alkoxy group, an aryloxy group, a heteroaryl group, an alkoxycarbonyl group, an alkylcarbonyloxy group, an alkoxycarbonylamino group, an aryloxycarbonylamino group, a sulfonylamino group, a sulfamoyl group, a carbamoyl group, an alkylthio group, a sulfinyl group, a ureido group, a phosphoramide group, a sulfo group, a carboxyl group, a hydrazino group, a substituted silyl group, a polymeric group, or a combination thereof;
wherein the alkyl group, haloalkyl group, aralkyl group, alkenyl group, alkynyl group, aryl group, amino group, mono- or dialkylamino group, alkoxy group, aryloxy group, and heteroaryl group is optionally substituted with one or more substituents selected from the group consisting of a deuterium atom, a halogen atom, a hydroxyl group, an SH group, a nitro group, a cyano group, an alkyl group, a haloalkyl group, an aralkyl group, an alkenyl group, an alkynyl group, an aryl group, an amino group, a mono- or dialkylamino group, a mono- or diarylamino group, an alkoxy group, an aryloxy group, a heteroaryl group, an alkoxycarbonyl group, an alkylcarbonyloxy group, an alkoxycarbonylamino group, an aryloxycarbonylamino group, a sulfonylamino group, a sulfamoyl group, a carbamoyl group, an alkylthio group, a sulfinyl group, a ureido group, a phosphoramide group, a sulfo group, a carboxyl group, a hydrazino group, a substituted silyl group, and a polymeric group.
11. The compound of claim 1 , having the structure selected from the group consisting of:
where:
L 3 and L 4 are each independently —CR 2 -, —CO—, or —SiR 2 -; and
R m , R n , R s , R t , each independently represents mono-, di-, tri, or tetra-substitution, valency permitting, and each independently represents a hydrogen atom, a deuterium atom, a halogen atom, a hydroxyl group, an —SH group, a nitro group, a cyano group, an alkyl group, a haloalkyl group, an aralkyl group, an alkenyl group, an alkynyl group, an aryl group, an amino group, a mono- or dialkylamino group, a mono- or diarylamino group, an alkoxy group, an aryloxy group, a heteroaryl group, an alkoxycarbonyl group, an alkylcarbonyloxy group, an alkoxycarbonylamino group, an aryloxycarbonylamino group, a sulfonylamino group, a sulfamoyl group, a carbamoyl group, an alkylthio group, a sulfinyl group, a ureido group, a phosphoramide group, a sulfo group, a carboxyl group, a hydrazino group, a substituted silyl group, a polymeric group, or a combination thereof,
where the alkyl group, haloalkyl group, aralkyl group, alkenyl group, alkynyl group, aryl group, amino group, mono- or dialkylamino group, alkoxy group, aryloxy group, and heteroaryl group is optionally substituted with one or more substituents selected from the group consisting of a deuterium atom, a halogen atom, a hydroxyl group, an SH group, a nitro group, a cyano group, an alkyl group, a haloalkyl group, an aralkyl group, an alkenyl group, a alkynyl group, an aryl group, an amino group, a mono- or dialkylamino group, a mono- or diarylamino group, an alkoxy group, an aryloxy group, a heteroaryl group, an alkoxycarbonyl group, an alkylcarbonyloxy group, an alkoxycarbonylamino group, an aryloxycarbonylamino group, a sulfonylamino group, a sulfamoyl group, a carbamoyl group, an alkylthio group, a sulfinyl group, a ureido group, a phosphoramide group, a sulfo group, a carboxyl group, a hydrazino group, a substituted silyl group, and a polymeric group.
12. The compound of claim 11 , wherein the structure is:
where n=1 and L 1 , L 2 , L 3 , L 4 , L 5 , and L 6 are each independently —CR 2 -, —CO—, or —SiR 2 -; and
R, R 1 , R 2 , R a , R b , R e , R d , R e , R f , R q , R h , and R i each independently represents mono-, di-, tri, or tetra-substitution, valency permitting, and each independently represents a hydrogen atom, a deuterium atom, a halogen atom, a hydroxyl group, an —SH group, a nitro group, a cyano group, an alkyl group, a haloalkyl group, an aralkyl group, an alkenyl group, an alkynyl group, an aryl group, an amino group, a mono- or dialkylamino group, a mono- or diarylamino group, an alkoxy group, an aryloxy group, a heteroaryl group, an alkoxycarbonyl group, an alkylcarbonyloxy group, an alkoxycarbonylamino group, an aryloxycarbonylamino group, a sulfonylamino group, a sulfamoyl group, a carbamoyl group, an alkylthio group, a sulfinyl group, a ureido group, a phosphoramide group, a sulfo group, a carboxyl group, a hydrazino group, a substituted silyl group, a polymeric group, or a combination thereof;
wherein the alkyl group, haloalkyl group, aralkyl group, alkenyl group, alkynyl group, aryl group, amino group, mono- or dialkylamino group, alkoxy group, aryloxy group, and heteroaryl group is optionally substituted with one or more substituents selected from the group consisting of a deuterium atom, a halogen atom, a hydroxyl group, an SH group, a nitro group, a cyano group, an alkyl group, a haloalkyl group, an aralkyl group, an alkenyl group, an alkynyl group, an aryl group, an amino group, a mono- or dialkylamino group, a mono- or diarylamino group, an alkoxy group, an aryloxy group, a heteroaryl group, an alkoxycarbonyl group, an alkylcarbonyloxy group, an alkoxycarbonylamino group, an aryloxycarbonylamino group, a sulfonylamino group, a sulfamoyl group, a carbamoyl group, an alkylthio group, a sulfinyl group, a ureido group, a phosphoramide group, a sulfo group, a carboxyl group, a hydrazino group, a substituted silyl group, and a polymeric group.
13. A thermally activated delayed fluorescent compound having a structure selected from the group consisting of:
where:
represents n acceptor moieties A, where A is a nitrogen-containing heteroaryl group, a R q MO group, where M is C, S, P, or As, or a R q SO 2 group, or any combination thereof, and n=1, 2, or 3, such that the compound includes a single acceptor moiety (A 1 ), two acceptor moieties (A 1 and A 2 ), or three acceptor moieties (A 1 , A 2 , and A 3 ), and wherein each acceptor moiety is substituted with R q ;
B and B 2 are each independently a substituted electron-deficient aromatic group,
L 1 and L 2 are each independently —CR 2 -, —CO—, or —SiR 2 -;
R m , R n , R s , and R t each independently represents mono-, di-, tri, or tetra-substitution, valency permitting, and each independently represents a hydrogen atom, a deuterium atom, a halogen atom, a hydroxyl group, an —SH group, a nitro group, a cyano group, an alkyl group, a haloalkyl group, an aralkyl group, an alkenyl group, an alkynyl group, an aryl group, an amino group, a mono- or dialkylamino group, a mono- or diarylamino group, an alkoxy group, an aryloxy group, a heteroaryl group, an alkoxycarbonyl group, an alkylcarbonyloxy group, an alkoxycarbonylamino group, an aryloxycarbonylamino group, a sulfonylamino group, a sulfamoyl group, a carbamoyl group, an alkylthio group, a sulfinyl group, a ureido group, a phosphoramide group, a sulfo group, a carboxyl group, a hydrazino group, a substituted silyl group, a polymeric group, or a combination thereof,
wherein the alkyl group, haloalkyl group, aralkyl group, alkenyl group, alkynyl group, aryl group, amino group, mono- or dialkylamino group, alkoxy group, aryloxy group, and heteroaryl group is optionally substituted with one or more substituents selected from the group consisting of a deuterium atom, a halogen atom, a hydroxyl group, an SH group, a nitro group, a cyano group, an alkyl group, a haloalkyl group, an aralkyl group, an alkenyl group, an alkynyl group, an aryl group, an amino group, a mono- or dialkylamino group, a mono- or diarylamino group, an alkoxy group, an aryloxy group, a heteroaryl group, an alkoxycarbonyl group, an alkylcarbonyloxy group, an alkoxycarbonylamino group, an aryloxycarbonylamino group, a sulfonylamino group, a sulfamoyl group, a carbamoyl group, an alkylthio group, a sulfinyl group, a ureido group, a phosphoramide group, a sulfo group, a carboxyl group, a hydrazino group, a substituted silyl group, and a polymeric group.
14. The compound of claim 13 , wherein n=2, and the compound is:
15. The compound of claim 13 , wherein B is an aryl group.
16. A light emitting device comprising the thermally activated delayed fluorescent compound of claim 1 .
17. The light emitting device of claim 16 , wherein the light emitting device is an organic light emitting diode.
18. The light emitting device of claim 16 , wherein the device comprises a full color display, a photovoltaic device, a luminescent display device or a phosphorescent display device.
19. A thermally activated delayed fluorescent compound represented by Formula II, Formula III, or Formula IV:
wherein:
represents n acceptor moieties A, where A is a nitrogen-containing heteroaryl group, a R q MO group, where M is C, S, P, or As, or a R q SO 2 group, or any combination thereof; and n=1, 2, or 3, such that the compound includes a single acceptor moiety (A 1 ), two acceptor moieties (A 1 and A 2 ), or three acceptor moieties (A 1 , A 2 , and A 3 ), and wherein each acceptor moiety is substituted with R q ;
L 1 , L 2 , and L 3 are each independently —CR 2 -, —CO—, or —SiR 2 -; and
R m , R n , R p , and R q each independently represent mono-, di-, tri, or tetra-substitution, valency permitting; and
each R, R m , R n , R p , and R q independently represents mono-, di-, tri, or tetra-substitution, valency permitting, and each independently represents a hydrogen atom, a deuterium atom, a halogen atom, a hydroxyl group, an —SH group, a nitro group, a cyano group, an alkyl group, a haloalkyl group, an aralkyl group, an alkenyl group, an alkynyl group, an aryl group, an amino group, a mono- or dialkylamino group, a mono- or diarylamino group, an alkoxy group, an aryloxy group, a heteroaryl group, an alkoxycarbonyl group, an alkylcarbonyloxy group, an alkoxycarbonylamino group, an aryloxycarbonylamino group, a sulfonylamino group, a sulfamoyl group, a carbamoyl group, an alkylthio group, a sulfinyl group, a ureido group, a phosphoramide group, a sulfo group, a carboxyl group, a hydrazino group, a substituted silyl group, a polymeric group, or a combination thereof;
wherein the alkyl group, haloalkyl group, aralkyl group, alkenyl group, alkynyl group, aryl group, amino group, mono- or dialkylamino group, alkoxy group, aryloxy group, and heteroaryl group is optionally substituted with one or more substituents selected from the group consisting of a deuterium atom, a halogen atom, a hydroxyl group, an SH group, a nitro group, a cyano group, an alkyl group, a haloalkyl group, an aralkyl group, an alkenyl group, an alkynyl group, an aryl group, an amino group, a mono- or dialkylamino group, a mono- or diarylamino group, an alkoxy group, an aryloxy group, a heteroaryl group, an alkoxycarbonyl group, an alkylcarbonyloxy group, an alkoxycarbonylamino group, an aryloxycarbonylamino group, a sulfonylamino group, a sulfamoyl group, a carbamoyl group, an alkylthio group, a sulfinyl group, a ureido group, a phosphoramide group, a sulfo group, a carboxyl group, a hydrazino group, a substituted silyl group, and a polymeric group;
with the proviso that when the compound is represented by Formula III, R m and R n are not pyridyl.
20. The thermally activated delayed fluorescent compound of claim 19 , wherein the compound is represented by Formula III.