Covalently linked <i>meso</i>-tetraaryl triphyrin(2.1.1)-ferrocene(s) conjugates: synthesis and properties

Abstract

triad and a triphyrin(2.1.1)-ferrocene dyad were obtained in 47-51% yields by coupling the appropriate functionalized triphyrin with ethynylferrocene under mild Pd(0) coupling reaction conditions. The functionalized triphyrins(2.1.1) and their conjugates were thoroughly characterized by HR-mass spectrometry and 1D and 2D NMR spectroscopy. The absorption, electrochemical and DFT studies suggested weak interactions between the triphyrin(2.1.1) and ferrocenyl moieties in triads but relatively strong interactions in dyads.