Blue luminescent compounds
There is provided a compound having Formula II In Formula II: R 1 -R 4 are the same or different at each occurrence and can be D, alkyl, silyl, aryl, deuterated alkyl, deuterated silyl, or deuterated aryl; a and c are the same or different and are an integer from 0-5; and b and d are the same or different and are an integer from 0-4.
1. A compound having Formula II
wherein:
R 1 -R 4 are the same or different at each occurrence and are selected from the group consisting of D, alkyl, silyl, aryl, deuterated alkyl, deuterated silyl, and deuterated aryl;
a and c are the same or different and are an integer from 0-5; and
b and d are the same or different and are an integer from 0-4.
2. The compound of claim 1 , wherein the compound is at least 10% deuterated.
3. The compound of claim 1 , wherein a>0 and R 1 is an unsubstituted alkyl or deuterated unsubstituted alkyl having 1-6 carbons.
4. The compound of claim 1 , wherein a=0.
5. The compound of claim 1 , wherein b>0 and R 2 is an unsubstituted alkyl or unsubstituted deuterated alkyl having 1-6 carbons.
6. The compound of claim 1 , wherein b=0.
7. The compound of claim 1 , wherein c>0 and R 3 is an alkyl or deuterated alkyl having 1-6 carbons.
8. The compound of claim 1 , wherein c>0 and R 3 is a branched alkyl or deuterated branched alkyl having 3-8 carbons.
9. The compound of claim 1 , wherein c=1 or 2.
10. The compound of claim 1 , wherein c=2 and the R 3 groups are meta to each other.
11. The compound of claim 1 , wherein d>0 and at least one R 4 is an aryl or deuterated aryl having 6-18 ring carbons.
12. The compound of claim 1 , wherein d>0 and R 4 is an alkylaryl or deuterated alkylaryl having 6-20 carbons.
13. A compound selected from Compound B1 through Compound B10
14. An organic electronic device comprising a first electrical contact, a second electrical contact and a photoactive layer therebetween, the photoactive layer comprising a compound having Formula II
wherein:
R 1 -R 4 are the same or different at each occurrence and are selected from the group consisting of D, alkyl, silyl, aryl, deuterated alkyl, deuterated silyl, and deuterated aryl;
a and c are the same or different and are an integer from 0-5; and
b and d are the same or different and are an integer from 0-4.
15. The device of claim 14 , wherein the photoactive layer comprises the compound of Formula II and further comprises a host material.
16. The device of claim 14 , wherein the photoactive layer consists essentially of the compound of Formula II and a host material.
17. A compound having Formula I
wherein:
R 1 -R 4 are the same or different at each occurrence and are selected from the group consisting of D, alkyl, silyl, aryl, deuterated alkyl, deuterated silyl, and deuterated aryl;
R 5 is H or D;
a and c are the same or different and are an integer from 0-5; and
b and d are the same or different and are an integer from 0-4.