Bidentate and Tetradentate β‐Aminovinyl Trifluoromethylated Ketones and Their Copper(II) Complexes: Synthesis, Characterization and Redox Chemistry

摘要: New polyfunctional bidentate and tetradentate trifluoromethylated enaminone ligands that bear redox-active photosensitive moieties were synthesized in moderate to good yields their coordination chemistry with copper(II) was examined. The crystal structures revealed the formation of mononuclear CuII complexes all ligands, where metal ion is located almost perfect distorted square planar environments. deviation from an ideal plane influences redox potentials centre within complex as demonstrated by cyclic voltammetry. For complexes, a stable CuI species evidenced quasireversible reduction step at –0.48 –1.08 V (potential standards E0), but most originated ligand. UV/Vis absorption spectra no major differences between complexes.