Synthesis and characterization of a new cobalt(II) complex with 2-(2-Pyridyl)imino-N-(2-thiazolin-2-yl)Thiazolidine (PyTT)

Abstract

The compound aquanitrate-kO-bis[2-(2-pyridyl)-imino-N-N-(2-thiazolin-kN-2- yl)thiazolidine]cbat() nitrate has been isolated and characterized by single crystal X-ray diffraction, IR spectroscopy, UV-Vis-NIR diffuse reflectance and magnetic susceptibility measurements. The environment around the cobalt atom may be described as a distorted octahedral geometry with the ligand-metal-ligand bite angles varying between 84.07(8)° and 98.66(8)° .The metallic atom is coordinated to two thiazoline nitrogens [av. Co-N=2.067 A],two imino nitrogens [av. Co-N = 2.122 Å], one oxygen atom of the nitrate group monodentate [Co-O(1)=2.249(2) A] and the oxygen atom of the water molecule [Co-O(IW)= 2.105(2) Å]. Electronic UV-Vis-NIR spectral data and the calculated magnetic moment are indicative of octahedral Co(ll) complexes. In the same way as other PyTT complexes, the organic moiety preserves the imino-thiazolidine form detected in the structure of PyTT.