Patent ID: 7960587

Claim:
A compound having the formula: wherein: n is an integer of at least 1; R 1 is selected from aryl, heteroaryl, fluoroaryl, and fluoroheteroaryl substituted with 1 or more fluorine atoms; R 3 is selected from H and R 1 ; R 2 is selected from H, R 1 , alkyl, fluoroalkyl, Cl, Br, I and an arylamino group of formula (II), wherein R 4 is selected from aryl, H, R 1 , alkyl, and fluoroalkyl; R 7 is selected from aryl, heteroaryl, fluoroaryl, and fluoroheteroaryl substituted with 1 or more fluorine atoms up to 7 fluorine atoms; and E is selected from O, S, (SiR 5 R 6 ) m wherein m is an integer of 1 to 20, (CR 5 R 6 ) m wherein m is an integer of 1 to 20, and combinations thereof, wherein R 5 and R 6 are each independently selected from H, F, alkyl, aryl, alkoxy, aryloxy, fluoroalkyl, fluoroaryl, fluoroalkoxy, and fluoroaryloxy and wherein R 5 and R 6 can, when taken together, form a ring, provided that when E is (CR 5 R 6 ) m , and m is 1, at least one of R 5 and R 6 is not hydrogen or a hydrocarbon, and provided that when E is (SiR 5 R 6 ) m and m is 1, R 3 is selected from 1-naphthyl and 2-naphthyl.