Benzoannelated A(3)B-Phthalocyanines with Diethyleneglycol Substituents: Synthesis and Control of Aggregation

New benzoannelated phthalocyanine H(2)A(3)B has been synthesized by cross-condensation of 4,5-dibutoxyphthalonitrile A and naphthalonitrile B bearing two diethyleneglycol substituents. UV-Vis and Hf-1 NMR measurements performed for H(2)A(3)B showed that the presence of free OH-groups in H(2)A(3)B enhances its aggregation in solution in comparison with its O-tetrahydropyranyl derivative H(2)A(3)Bt, which can be considered as a way to control the physicochemical properties of asymmetric phthalocyanines.