Patent ID: 8158972

Claim:
An organic photosensitive optoelectronic device comprising at least one tetra-azaporphyrin compound of formula I having a trivalent or tetravalent metal atom M bonded at the center of the tetra-azaporphyrin core, wherein M is a (a) trivalent metal atom having a monoanionic ligand, X, attached as shown in formula II, (b) tetravalent metal atom having two monoanionic ligands, X′ and X″, attached as shown in formula III, or (c) tetravalent metal atom having two monoanionic ligands, X′ and X″, attached as shown in formula IV: wherein X is a monoanionic ligand; X′ and X″ are independently two monoanionic ligands that are the same or different; and R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 and R 8 are independently selected from alkyl group, substituted alkyl group, alkenyl group, substituted alkenyl group, alkynyl group, substituted alkynyl group, cycloalkyl group, substituted cycloalkyl group, cycloalkenyl group, substituted cycloalkenyl group, cycloalkynyl group, substituted cycloalkynyl group, aryl group, substituted aryl group, heterocyclic group and substituted heterocyclic group.