Synthesis and photophysical properties of poly-(phenylenevinylene) dendrimers with a ruthenium tris-bipyridine core

The photophysical processes are investigated in first, second and third generation dendrimers with poly-(phenylenevinylene) branches and a ruthenium tris-bipyridine core, RuDn (n = 1-3). These dendrimers show very efficient forward singlet-singlet energy transfer from the branches to the ruthenium core upon UV irradiation.