| abstract |
The present invention relates to organic molecules having exactly two units of formula I linked to each other through a single bond or a bridge Y, In formula I, Y is a divalent group; Each X is the same or different CN or CF 3, and the case; D is a chemical unit having the structure of Formula I-1: In the above formula I-1, # Is the point of attachment of the unit according to formula I-1 to the structure according to formula I; A and B are independently selected from the group consisting of CRR 1 , CR, NR, and N, wherein a single bond or a double bond exists between A and B, and a single bond or a double bond exists between B and Z; Z is a bond, or substituted or unsubstituted C1-C9- alkylene group, C2-C8- alkenyl group, C2-C8- alkynyl group or an aryl group or a combination of these divalent organic bridging, -CRR 1 , -C = CRR 1, -C = NR, -NR-, -O-, -SiRR 1 -, -S-, -S (O) -, -S (O) 2 -, O- interference substituted or A C 2 -C 8 -alkenylene group, a C 2 -C 8 -alkynylene group or an arylene group, a phenyl unit or a substituted phenyl unit. |