Some peculiarities of ??? interactions between tetraphenylporphine metal complexes and aromatic solvents

Abstract

The π—π complexes of metal tetraphenylporphinates with benzene, toluene, and xylenes were characterized by means of thermogravimetry. The ability of metalloporphyrins to form π—π complexes with certain π-donor molecules depends largely on the π-acceptor capacity of the macroheterocycle, and on the peculiarities of the metal—porphyrin coordinative linkage. Stoichiometry, energy parameters, and thermal stability of the π-π complexes of metalloporphyrins with various aromatic ligands are determined to a great extent by the molecular structure of solvents.