Heterometallic homo- and heteroleptic porphyrinate dimers with a rhodium-thallium bond

Research was conducted to study the synthesis and spectroscopic characterization of four heterometallic porphyrinate dimers containing rhodium-thallium metal-metal bonds. The reduction of the rhodium(III) derivative was performed under strictly anaerobic conditions and were monitored by UV/visible spectroscopy. Results indicate that the photochemical properties of the (Porph)Rh-Tl(Porph') complexes are extremely complicated in comparison to those of the similar (Porph)Rh-In(Porph') derivatives.