The effect of the microenvironment on spectroscopic properties of complexes comprised of stilbazolium merocyanine and Cu(II) and Co(II) ions in isotropic and anisotropic media

Abstract The effect of the microenvironment on the spectroscopic properties of the complexes comprised of the derivative of merocyanine and specific ions (either dissolved or embedded in the polymer matrix) was examined. The effect of water concentration and the concentration of various anions on complex-forming ability was also established in this paper. As shown here, the mero–Co 2+ complex undergoes dissociation in the presence of water. However, for mero–Cu 2+ complex only a hipsochromic shift in the absorption spectrum was observed. The presence of the examined anions exhibited a strong effect on the formation of the mero–Cu 2+ complex. In anisotropic polymer matrix, the examined complexes also exhibited discrepant features.