Spectrochemical properties and solvatochromism of bis(salicylidene-2-amino-3-methylpyridine)copper(II)

Abstract

The title complex, denoted as [Cu(Msap) 2 ], is a deep brown solid soluble in common solvents like chloroform, toluene, benzene, dioxane, acetone, methanol, ethanol, 2-propanol, dimethylformamide, dimethyl sulfoxide, and acetonitrile that is a necessary condition for solvatochromism observation. The complex has been characterized by elemental analysis, molar conductivity, ultraviolet, and visible spectroscopy. The available X-ray data for similar compounds show that copper atom adopts planar coordination geometry. The molar conductivities indicate their non-electrolytic properties. The electronic spectra have been used to study the coordination properties of donor atoms and their bonding abilities, as well as solvatochromism. The results obtained show that the interactions of metal with donors depend on solvent polarity and the color changes are subtle.

Interplay of thermochemistry and Structural Chemistry, the journal (volume 21, 2010) and the discipline

“…As part of continuing investigations on interpretation of the electronic spectra of the copper(II) complexes with Schiff bases, Kurzak and Kuźniarska-Biernacka [101] synthesized the bis(salicylidene-2-amino-3-methylpyridine) copper(II) complex, which was characterized by elemental analysis, conductivity measurements, and UV-Vis spectroscopy. Coordination properties of donor atoms and their bonding abilities, as well as solvatochromism were studied by electronic spectra.…”