Tetradentate platinum (II) and palladium (II) complexes and octahedral iridium complexes employing azepine functional groups and their analogues
Platinum (II) and palladium (II) complexes of Formulas A and B and iridium (III) complexes of Formula C having azepine functional groups and their analogues as emitters for full color displays and lighting applications.
1. A complex of Formula C:
wherein:
R 1 , R 2 , and R 3 each independently represents hydrogen, halogen, hydroxyl, nitro, thiol, or substituted or unsubstituted C 1 -C 4 alkyl, alkoxy, amino, or aryl;
Y 1a , Y 1b , Y 1c , Y 1d , Y 1e , Y 2a , Y 2b , Y 2c , Y 2d , Y 2e , Y 3a , Y 3b , Y 3c , Y 3d , and Y 3e each independently represents C, N, Si, O, or S;
Ar 1 , Ar 2 , and Ar 3 each independently represents an aryl or heteoraryl;
Y 2f , valency permitting, represents N, P, N═O, P═O, NR, PR, CR, SiR, CR 2 , SiR 2 , O, or S;
m is 1, 2, or 3;
y is 0, 1, or 2;
the sum of m and y is 3;
each of t, u, and v is independently 0, 1, 2, 3, 4, or 5, valency permitting;
at least one of X1 and X2 independently represents one of the following moieties:
and the other X 1 and X 2 , if not one of the moieties above, is independently absent or represents single bond, NR, PR, BR, CRR′, SiRR′, O, S, S═O, O═S═O, Se, Se═O, or O═Se═O;
R 8 , R 9 , R 10 , and R 11 each independently represents hydrogen, halogen, hydroxyl nitro, thiol, or substituted or unsubstituted C 1 -C 4 alkyl, alkoxy, amino, or aryl;
each n is independently 1, 2, 3, 4, 5, or 6, valency permitting;
each of R and R′ is independently present or absent, and each R and R′ present represents substituted or unsubstituted C 1 -C 4 alkyl, aryl, or heteroaryl; and
each
present independently represents one of the following moieties:
2. The complex of claim 1 , represented by one of the following structures:
where:
each R 4 and R 5 present independently represents hydrogen, halogen, hydroxy, nitro, thiol, or substituted or unsubstituted C 1 -C 4 alkyl, alkoxy, amino, or aryl;
each n is independently 1, 2, 3, 4, or 5, valency permitting;
U, U 1 , and U 2 , valency permitting, each independently represents N, P, N═O, P═O, NR, PR, CR, SiR, CR 2 , SiR 2 , O, or S; and
R represents substituted or unsubstituted C 1 -C 4 alkyl, aryl, or heteroaryl.
3. A light emitting device comprising the complex of claim 1 .
4. An organic light emitting device comprising the complex of claim 1 .
5. The organic light emitting device of claim 4 , wherein the device is a phosphorescent organic light emitting device.
6. A photovoltaic device comprising the complex of claim 1 .
7. A luminescent display device comprising the complex of claim 1 .