New donor-acceptor porphyrin-fullerene dyades

Abstract

The reaction of hydroxooxo(5,10,15,20-(tetraphenylpophyrinato)molybdenum(V) (O=Mo(OH)TPP) with 2'-(4-pyridyl)-5'-(2-pyridyl)-1'-(3-pyridyl)-methyl-pirrolidinyl-[60]fullerene (Py3F) in toluene was studied using chemical thermodynamics and kinetics. Stoichiometric mechanism of the complete reaction of coordination-ligand exchange in O=Mo(OH)TPP, as well as the equilibrium and rate constants of simple reactions during the process were obtained. Intermediates and reaction products were analyzed with the spectral methods. Formation of the equilibrium mixture of two complexes [O=Mo(Py3F)TPP]+·OH- bonded by the coordination of both 2'-(4-and 1'-(3-pyridyl) N atoms was established. Dilute mixtures of O=Mo(OH)TPP-Py3F in toluene were found to have the properties of self-organizing systems with solved donor-acceptor complexes which have a C60 fullerene fragment. Such complexes are potential components of photovoltaics active layers. © ISUCT Publishing.