Tetra-2,3-pyrazinoporphyrazines with externally appended pyridine rings. 18. Physicochemical properties and photochemical behavior of new uncharged water soluble low-symmetry macrocycles [Pd(OAc)2 3 (PtCl2 )LM] (M = MgII(H2 O), ZNII, PdII)
The synthesis and physicochemical characterization of a new class of low-symmetry water soluble heteropentanuclear porphyrazine complexes are described. The investigated compounds, represented as [{Pd(OAc)2}3(PtCl2)LM] · xH2O where L = tetrakis-2,3-[5,6-di(2-pyridyl)pyrazino]porphyrazinato dianion, M = MgII(H2O), ZnII or PdII and x = 3-8, were prepared under mild experimental conditions from the previously described heterobimetallic compounds [(PtCl2)LM].