Organometallic boxes built from 5,10,15,20-tetra(4-pyridyl)porphyrin panels and hydroxyquinonato-bridged diruthenium clips

摘要

Self-assembly of 5,10,15,20-tetra(4-pyridyl)porphyrin (tpp-H) tetradentate panels with dinuclear arene ruthenium clips [Ru (η-arene) (dhbq)Cl] (arene = CHMe, p-PriCHMe, CMe; dhbq = 2,5-dihydroxy-1,4-benzoquinonato) affords the cationic organometallic boxes [Ru (η-CHMe) (tpp-H) (dhbq)] ([]), [Ru (η-p-PriCHMe) (tpp-H)(dhbq)] ([]) and [Ru (η-CMe) (tpp-H) (dhbq)] ([]). These octanuclear cations have been isolated as their triflate salts and characterised by mass spectrometry, NMR and IR spectroscopy. The molecular structure of these systems was deduced by one-dimensional and two-dimensional NMR experiments (ROESY, COSY, HSQC).