ELECTROACTIVE COMPOUNDS

1 . A compound having Formula I Formula I

wherein:

Ar 1 is selected from the group consisting of hydrocarbon aryl groups, heteroaryl groups, and substituted derivatives thereof;

Ar 2 is selected from the group consisting of Formula IA, Formula IB, Formula IC, Formula IAa, Formula IBb, and Formula ICc

wherein:

Ar 3 is the same or different at each occurrence and is selected from the group consisting of phenyl, naphthyl, and substituted derivatives thereof;

Y is the same or different at each occurrence and is selected from the group consisting of CR a R b , O, S, and Se, with the proviso that at least one Y is selected from the group consisting of O, S, and Se;

R a and R b are the same or different at each occurrence and are selected from the group consisting of alkyl, silyl, germyl, hydrocarbon aryl, heteroaryl, and substituted derivatives thereof, where R a and R b can be joined to form a cyclic group selected from the group consisting of cycloalkyl, silacycloalkyl, spirofluorenyl, silaspirofluorenyl, or a substituted derivative thereof;

R 1 -R 4 are the same or different at each occurrence and are selected from the group consisting of D, F, CN, alkyl, fluoroalkyl, hydrocarbon aryl, heteroaryl, silyl, germyl, deuterated alkyl, deuterated partially-fluorinated alkyl, deuterated hydrocarbon aryl, deuterated heteroaryl, deuterated heteroaryl deuterated silyl, and deuterated germyl, where adjacent R 2 and/or R 3 groups can be joined together to form a fused aromatic ring;

a is an integer from 0-8;

b is an integer from 0-3;

c is an integer from 0-4;

d, d1, and d2 are the same or different and are an integer from 0-2;

f is an integer from 0-1;

a double dashed line between two rings indicates that the rings are fused together in any orientation; and

* indicates a point of attachment in the identified formula;

with the proviso that:

in Formula IB and Formula IC there is at least one naphthyl group formed by R 2 or R 3 groups, where the naphthyl group may have one or more substituents selected from the group consisting of D, F, CN, alkyl, fluoroalkyl, hydrocarbon aryl, heteroaryl, silyl, germyl, deuterated alkyl, deuterated partially-fluorinated alkyl, deuterated hydrocarbon aryl, deuterated heteroaryl, deuterated heteroaryl deuterated silyl, and deuterated germyl.

2 . The compound according to claim 1 , wherein at least one Y=O

3 . The compound according to claim 1 , wherein all Y=O.

4 . The compound according to claim 1 , wherein Ar 2 is selected from the group consisting of a hydrocarbon aryl having 6-30 ring carbons and a deuterated analog thereof.

5 . The compound according to claim 1 , wherein Ar 2 is selected from the group consisting of Formula IA has Formula IA-1, Formula IA-2, Formula IA-3, and Formula IA-4

where:

c1 is an integer from 0-4.

6 . The compound according to claim 1 , wherein Ar 2 is selected from the group consisting of Formula IB has Formula IB-1, Formula IB-2, and Formula IB-3

where:

c1 is an integer from 0-4;

with the proviso that there is at least one naphthyl group formed by R 2 or R 3 groups, where the naphthyl group may have one or more substituents selected from the group consisting of D, F, CN, alkyl, fluoroalkyl, hydrocarbon aryl, heteroaryl, silyl, germyl, deuterated alkyl, deuterated partially-fluorinated alkyl, deuterated hydrocarbon aryl, deuterated heteroaryl, deuterated heteroaryl deuterated silyl, and deuterated germyl.

7 . The compound according to claim 1 , wherein Ar 2 is selected from the group consisting of Formula IC-1, Formula IC-2, Formula IC-3, Formula IC-4, Formula IC-5, Formula IC-6, Formula IC-7, Formula IC-8, and Formula IC-9

where:

c1 is an integer from 0-4;

with the proviso that there is at least one naphthyl group formed by R 2 or R 3 groups, where the naphthyl group may have one or more substituents selected from the group consisting of D, F, CN, alkyl, fluoroalkyl, hydrocarbon aryl, heteroaryl, silyl, germyl, deuterated alkyl, deuterated partially-fluorinated alkyl, deuterated hydrocarbon aryl, deuterated heteroaryl, deuterated heteroaryl deuterated silyl, and deuterated germyl.

8 . An organic electronic device comprising a first electrical contact, a second electrical contact and a photoactive layer therebetween, wherein the photoactive layer comprises a compound according to claim 1 .