Patent ID: 8053536

Claim:
A process comprising reacting a polyfluorene comprising at least one structural group of formula I with an iridium (III) compound of formula II wherein R 1 and R 2 are independently alkyl, substituted alkyl, aryl, substituted aryl or a combination thereof; R 5 is H or CHO; R 3 and R 4 are independently hydrogen, alkyl, substituted alkyl, aryl, substituted aryl or a combination thereof; R 11 and R 12 taken together form a substituted or unsubstituted monocyclic or bicyclic heteroaromatic ring; R 13 is independently at each occurrence halo, nitro, hydroxy, amino, alkyl, aryl, arylalkyl, alkoxy, substituted alkoxy, substituted alkyl, substituted aryl, or substituted arylalkyl; Ar is aryl, heteroaryl, substituted aryl, substituted heteroaryl, or a combination thereof; X is a direct bond, alkyl, substituted alkyl, or a combination thereof; Y is CHO or NH 2 ; Z is CHO or NH 2 and does not equal Y; and p is 0, 1 or 2.