Water and alcohol-soluble octakis-metalloporphyrazines bearing sulfanyl polyetherol substituents: Synthesis,spectroscopy and electrochemistry

摘要

Water-soluble metalloporphyrazines (2,3,and 4) bearing peripherally functionalized bis[thioethoxy(ethoxy)ethanol] moieties have been prepared from the corresponding [2H]-2,3,7,8,12,13,17,18-octakis{2-[2-2-hydroxyethoxy)ethoxy]-ethylthio}porphyrazine and appropriate metal salts [Zn(acac)2,CoCl2,MnCl2] in non-aqueous polar solvents such as,alcohol and THF.Multifunctional polyetherolsulfanyl peripheral sites,the exocyclic site of porphyrazines,serve as weak interacting ionophore in a number of metal ions,such as Ag~I and Pd~(II).The reactivity of the peripheral groups of MPzs was tested by spectrophotometric titration by Ag~I and Pd~(II).The titration resulted in the formation of intractable less soluble black and dark-blue polynuclear porphyrazine complexes.The new compounds have been characterized by elemental analysis,FTIR,1H NMR,UV-vis and MS (MALDI-TOF).The voltammetric investigation of the complexes showed common ligand and metal-based redox processes.