| abstract |
Metal complexes of formula I and IA and polymers derived from the complexes are useful in optoelectronic devices n n n n n n n n n n n n wherein n M is Ir, Co or Rh; n n n n n n n n n n n n n n n n is a cyclometallated ligand; n R 1 is hydrogen, alkyl, substituted alkyl, aryl, substituted aryl, arylalkyl, or substituted arylalkyl; n R 2 is hydrogen, alkyl, substituted alkyl, aryl, substituted aryl, arylalkyl, substituted arylalkyl; and n at least one of R 1 and R 2 is other than hydrogen; n R 1a is hydrogen, alkyl, substituted alkyl, aryl, substituted aryl, arylalkyl, or substituted arylalkyl; n R 2a is hydrogen, alkyl, substituted alkyl, aryl, substituted aryl, arylalkyl, substituted arylalkyl;n nand at least one of R 1a and R 2a is substituted alkyl, substituted aryl, substituted arylalkyl, and at least one substitutent of the substituted alkyl, substituted aryl, or substituted arylalkyl is a polymerizable group. |