As a model compound for corresponding PPV polymers containing phthalocyanin
e (Pc) subunits a phenylenevinylene-bridged nickel Pc dimer is synthesized.
The synthesis route includes a modified Pc-monoaldehyde, which furnishes w
ith 0.5 equivalents of p-xylylene bis(triphenylphosphonium)bromide in a Wit
tig reaction the Pc dimer. (C) 2000 Elsevier Science S.A. All rights reserv
ed.