Dynamics of Closure of Zinc Bis‐Porphyrin Molecular Tweezers with Copper(II) Ions and Electron Transfer

摘要: Zinc bis-porphyrin molecular tweezers composed of a N(4) spacer bound through pyridyl units to the meso position porphyrins were synthesized, and are closed by coordination copper(II) ion inside ligand. The effect π-π interaction between porphyrin rings in conformation on absorption spectra multi-electron oxidized species reduction potentials clarified chemical electrochemical oxidation form zinc comparison with open without corresponding monomer. shifts redox spectrum dication indicate strong electronic two form, whereas there is little them neutral form. dynamics subsequent electron transfer was examined using stopped-flow UV/Vis spectroscopic technique. It confirmed that occurs prior electron-transfer tweezers.