Evolution of Physical and Photocatalytic Properties of New Zn(II) and Ru(II) complexes

Abstract Synthesis of Zn (II) and Ru (II) complexes were reported by using N 4 -macrocyclic Schiff base ligands under solvothermal conditions. The newly synthesized Zn (II) and Ru (II) complexes have been characterized by various physico-chemical techniques such as elemental analysis, molar conductance, HRMS, TGA, FESEM, UV–vis, FT-IR, 1 H-NMR, and cyclic voltammetry. By using molar conductance studies, the complexes are formulated as [Zn(TPTTP)]Cl 2 and [Ru(TPTTP)Cl 2 ]. C-H bond activation of an sp 3 group of methylstyrenes (converted into cinnamaldehydes) and C-H bond activation of the sp 2 bond of polycyclic aromatic hydrocarbons through photooxidation was examined in the presence of Zn(II) and Ru(II) complexes. Reusable activity studies and photostability of catalyst are investigated by using UV-visible spectra. Based on the results, higher catalytic activity of [Ru(TPTTP)Cl 2 ] complex than [Zn(TPTTP)]Cl 2 complex in both C-H bond activation and photooxidation of aromatic hydrocarbons has been reported.